ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.274 by root, Tue Jun 5 13:05:02 2007 UTC vs.
Revision 1.522 by root, Sat Apr 17 02:22:14 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Socket;	31	use Socket;
9	use Storable;	32	use EV;
10	use Event;
11	use Opcode;	33	use Opcode;
12	use Safe;	34	use Safe;
13	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
14		38
		39	use Guard ();
15	use Coro 3.61 ();	40	use Coro ();
16	use Coro::State;	41	use Coro::State;
17	use Coro::Handle;	42	use Coro::Handle;
		43	use Coro::EV;
18	use Coro::Event;	44	use Coro::AnyEvent;
19	use Coro::Timer;	45	use Coro::Timer;
20	use Coro::Signal;	46	use Coro::Signal;
21	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
22	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
23	use Coro::Storable;	52	use Coro::Storable;
		53	use Coro::Util ();
24		54
		55	use JSON::XS 2.01 ();
25	use BDB ();	56	use BDB ();
26	use Data::Dumper;	57	use Data::Dumper;
27	use Digest::MD5;
28	use Fcntl;	58	use Fcntl;
29	use YAML::Syck ();	59	use YAML::XS ();
30	use IO::AIO 2.32 ();	60	use IO::AIO ();
31	use Time::HiRes;	61	use Time::HiRes;
32	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
		64
		65	AnyEvent::detect;
33		66
34	# configure various modules to our taste	67	# configure various modules to our taste
35	#	68	#
36	$Storable::canonical = 1; # reduce rsync transfers	69	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		77
40	$Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
41		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		80
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		82
49	our %COMMAND = ();	83	our %COMMAND = ();
50	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
51		85
52	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
56		91
57	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	93	our @EVENT;
		94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
59		96
60	our $CONFDIR = confdir;	97	our $CONFDIR = confdir;
61	our $DATADIR = datadir;	98	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	99	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	100	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	101	our $MAPDIR = "$DATADIR/" . mapdir;
65	our $LOCALDIR = localdir;	102	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	106	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $OUTPUT_RATE_MIN = 4000;
		114	our $OUTPUT_RATE_MAX = 100000;
71		115
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	116	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
73	our $TICK_WATCHER;
74	our $AIO_POLL_WATCHER;
75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	117	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	118	our $NEXT_TICK;
77	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off	119	our $USE_FSYNC = 1; # use fsync to write maps - default on
79		120
		121	our $BDB_DEADLOCK_WATCHER;
		122	our $BDB_CHECKPOINT_WATCHER;
80	our $BDB_POLL_WATCHER;	123	our $BDB_TRICKLE_WATCHER;
81	our $DB_ENV;	124	our $DB_ENV;
		125
		126	our @EXTRA_MODULES = qw(pod match mapscript);
82		127
83	our %CFG;	128	our %CFG;
84		129
85	our $UPTIME; $UPTIME ||= time;	130	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	131	our $RUNTIME;
		132	our $NOW;
87		133
88	our %PLAYER; # all users	134	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	135	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	136	our $LINK_MAP; # the special {link} map, which is always available
91		137
92	# used to convert map paths into valid unix filenames by replacing / by ∕	138	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	139	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		140
95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)	141	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
96	our $LOADAVG; # same thing, but with alpha-smoothing	142	our $LOADAVG; # same thing, but with alpha-smoothing
		143	our $JITTER; # average jitter
97	our $tick_start; # for load detecting purposes	144	our $TICK_START; # for load detecting purposes
		145
		146	our @POST_INIT;
		147
		148	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		149	our $REALLY_UNLOOP; # never set to true, please :)
98		150
99	binmode STDOUT;	151	binmode STDOUT;
100	binmode STDERR;	152	binmode STDERR;
101		153
102	# read virtual server time, if available	154	# read virtual server time, if available
103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	155	unless ($RUNTIME || !-e $RUNTIMEFILE) {
104	open my $fh, "<", "$LOCALDIR/runtime"	156	open my $fh, "<", $RUNTIMEFILE
105	or die "unable to read runtime file: $!";	157	or die "unable to read $RUNTIMEFILE file: $!";
106	$RUNTIME = <$fh> + 0.;	158	$RUNTIME = <$fh> + 0.;
107	}	159	}
		160
		161	eval "sub TICK() { $TICK } 1" or die;
108		162
109	mkdir $_	163	mkdir $_
110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	164	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
111		165
112	our $EMERGENCY_POSITION;	166	our $EMERGENCY_POSITION;
113		167
114	sub cf::map::normalise;	168	sub cf::map::normalise;
		169
		170	sub in_main() {
		171	$Coro::current == $Coro::main
		172	}
		173
		174	#############################################################################
		175
		176	%REFLECT = ();
		177	for (@REFLECT) {
		178	my $reflect = JSON::XS::decode_json $_;
		179	$REFLECT{$reflect->{class}} = $reflect;
		180	}
		181
		182	# this is decidedly evil
		183	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
115		184
116	#############################################################################	185	#############################################################################
117		186
118	=head2 GLOBAL VARIABLES	187	=head2 GLOBAL VARIABLES
119		188
…		…
155		224
156	The raw value load value from the last tick.	225	The raw value load value from the last tick.
157		226
158	=item %cf::CFG	227	=item %cf::CFG
159		228
160	Configuration for the server, loaded from C</etc/crossfire/config>, or	229	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
161	from wherever your confdir points to.	230	from wherever your confdir points to.
162		231
163	=item cf::wait_for_tick, cf::wait_for_tick_begin	232	=item cf::wait_for_tick, cf::wait_for_tick_begin
164		233
165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	234	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
166	returns directly I<after> the tick processing (and consequently, can only wake one process	235	returns directly I<after> the tick processing (and consequently, can only wake one process
167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	236	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
168		237
		238	=item @cf::INVOKE_RESULTS
		239
		240	This array contains the results of the last C<invoke ()> call. When
		241	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		242	that call.
		243
		244	=item %cf::REFLECT
		245
		246	Contains, for each (C++) class name, a hash reference with information
		247	about object members (methods, scalars, arrays and flags) and other
		248	metadata, which is useful for introspection.
		249
169	=back	250	=back
170		251
171	=cut	252	=cut
172		253
173	BEGIN {	254	$Coro::State::WARNHOOK = sub {
174	*CORE::GLOBAL::warn = sub {
175	my $msg = join "", @_;	255	my $msg = join "", @_;
176		256
177	$msg .= "\n"	257	$msg .= "\n"
178	unless $msg =~ /\n$/;	258	unless $msg =~ /\n$/;
179		259
180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	260	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
181		261
182	utf8::encode $msg;
183	LOG llevError, $msg;	262	LOG llevError, $msg;
184	};	263	};
185	}	264
		265	$Coro::State::DIEHOOK = sub {
		266	return unless $^S eq 0; # "eq", not "=="
		267
		268	warn Carp::longmess $_[0];
		269
		270	if (in_main) {#d#
		271	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		272	return;#d#
		273	}#d#
		274
		275	# kill coroutine otherwise
		276	Coro::terminate
		277	};
186		278
187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	279	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	280	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	281	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	282	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
…		…
197	for my $pkg (qw(	289	for my $pkg (qw(
198	cf::global cf::attachable	290	cf::global cf::attachable
199	cf::object cf::object::player	291	cf::object cf::object::player
200	cf::client cf::player	292	cf::client cf::player
201	cf::arch cf::living	293	cf::arch cf::living
		294	cf::map cf::mapspace
202	cf::map cf::party cf::region	295	cf::party cf::region
203	)) {	296	)) {
204	no strict 'refs';
205	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	297	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
206	}	298	}
207		299
208	$Event::DIED = sub {	300	$EV::DIED = sub {
209	warn "error in event callback: @_";	301	Carp::cluck "error in event callback: @_";
210	};	302	};
		303
		304	#############################################################################
211		305
212	=head2 UTILITY FUNCTIONS	306	=head2 UTILITY FUNCTIONS
213		307
214	=over 4	308	=over 4
215		309
…		…
234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	328	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
235	$d	329	$d
236	} || "[unable to dump $_[0]: '$@']";	330	} || "[unable to dump $_[0]: '$@']";
237	}	331	}
238		332
239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
240
241	=item $ref = cf::from_json $json	333	=item $ref = cf::decode_json $json
242		334
243	Converts a JSON string into the corresponding perl data structure.	335	Converts a JSON string into the corresponding perl data structure.
244		336
245	=item $json = cf::to_json $ref	337	=item $json = cf::encode_json $ref
246		338
247	Converts a perl data structure into its JSON representation.	339	Converts a perl data structure into its JSON representation.
248		340
		341	=cut
		342
		343	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		344
		345	sub encode_json($) { $json_coder->encode ($_[0]) }
		346	sub decode_json($) { $json_coder->decode ($_[0]) }
		347
		348	=item cf::post_init { BLOCK }
		349
		350	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		351	but I<before> the server starts ticking again.
		352
		353	The cdoeblock will have a single boolean argument to indicate whether this
		354	is a reload or not.
		355
		356	=cut
		357
		358	sub post_init(&) {
		359	push @POST_INIT, shift;
		360	}
		361
249	=item cf::lock_wait $string	362	=item cf::lock_wait $string
250		363
251	Wait until the given lock is available. See cf::lock_acquire.	364	Wait until the given lock is available. See cf::lock_acquire.
252		365
253	=item my $lock = cf::lock_acquire $string	366	=item my $lock = cf::lock_acquire $string
254		367
255	Wait until the given lock is available and then acquires it and returns	368	Wait until the given lock is available and then acquires it and returns
256	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	369	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
257	for example when the coroutine gets canceled), the lock is automatically	370	for example when the coroutine gets canceled), the lock is automatically
258	returned.	371	returned.
259		372
		373	Locks are *not* recursive, locking from the same coro twice results in a
		374	deadlocked coro.
		375
260	Lock names should begin with a unique identifier (for example, cf::map::find	376	Lock names should begin with a unique identifier (for example, cf::map::find
261	uses map_find and cf::map::load uses map_load).	377	uses map_find and cf::map::load uses map_load).
262		378
263	=item $locked = cf::lock_active $string	379	=item $locked = cf::lock_active $string
264		380
265	Return true if the lock is currently active, i.e. somebody has locked it.	381	Return true if the lock is currently active, i.e. somebody has locked it.
266		382
267	=cut	383	=cut
268		384
269	our %LOCK;	385	our $LOCKS = new Coro::SemaphoreSet;
270		386
271	sub lock_wait($) {	387	sub lock_wait($) {
272	my ($key) = @_;	388	$LOCKS->wait ($_[0]);
273
274	# wait for lock, if any
275	while ($LOCK{$key}) {
276	push @{ $LOCK{$key} }, $Coro::current;
277	Coro::schedule;
278	}
279	}	389	}
280		390
281	sub lock_acquire($) {	391	sub lock_acquire($) {
282	my ($key) = @_;	392	$LOCKS->guard ($_[0])
283
284	# wait, to be sure we are not locked
285	lock_wait $key;
286
287	$LOCK{$key} = [];
288
289	Coro::guard {
290	# wake up all waiters, to be on the safe side
291	$_->ready for @{ delete $LOCK{$key} };
292	}
293	}	393	}
294		394
295	sub lock_active($) {	395	sub lock_active($) {
296	my ($key) = @_;	396	$LOCKS->count ($_[0]) < 1
297
298	! ! $LOCK{$key}
299	}	397	}
300		398
301	sub freeze_mainloop {	399	sub freeze_mainloop {
302	return unless $TICK_WATCHER->is_active;	400	tick_inhibit_inc;
303		401
304	my $guard = Coro::guard {	402	&Guard::guard (\&tick_inhibit_dec);
305	$TICK_WATCHER->start;	403	}
		404
		405	=item cf::periodic $interval, $cb
		406
		407	Like EV::periodic, but randomly selects a starting point so that the actions
		408	get spread over time.
		409
		410	=cut
		411
		412	sub periodic($$) {
		413	my ($interval, $cb) = @_;
		414
		415	my $start = rand List::Util::min 180, $interval;
		416
		417	EV::periodic $start, $interval, 0, $cb
		418	}
		419
		420	=item cf::get_slot $time[, $priority[, $name]]
		421
		422	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		423	This call blocks and returns only when you have at least C<$time> seconds
		424	of cpu time till the next tick. The slot is only valid till the next cede.
		425
		426	The optional C<$name> can be used to identify the job to run. It might be
		427	used for statistical purposes and should identify the same time-class.
		428
		429	Useful for short background jobs.
		430
		431	=cut
		432
		433	our @SLOT_QUEUE;
		434	our $SLOT_QUEUE;
		435	our $SLOT_DECAY = 0.9;
		436
		437	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		438	$SLOT_QUEUE = Coro::async {
		439	$Coro::current->desc ("timeslot manager");
		440
		441	my $signal = new Coro::Signal;
		442	my $busy;
		443
		444	while () {
		445	next_job:
		446
		447	my $avail = cf::till_tick;
		448
		449	for (0 .. $#SLOT_QUEUE) {
		450	if ($SLOT_QUEUE[$_][0] <= $avail) {
		451	$busy = 0;
		452	my $job = splice @SLOT_QUEUE, $_, 1, ();
		453	$job->[2]->send;
		454	Coro::cede;
		455	goto next_job;
		456	} else {
		457	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		458	}
		459	}
		460
		461	if (@SLOT_QUEUE) {
		462	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		463	push @cf::WAIT_FOR_TICK, $signal;
		464	$signal->wait;
		465	} else {
		466	$busy = 0;
		467	Coro::schedule;
		468	}
306	};	469	}
307	$TICK_WATCHER->stop;	470	};
308	$guard	471
		472	sub get_slot($;$$) {
		473	return if tick_inhibit || $Coro::current == $Coro::main;
		474
		475	my ($time, $pri, $name) = @_;
		476
		477	$time = clamp $time, 0.01, $TICK * .6;
		478
		479	my $sig = new Coro::Signal;
		480
		481	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		482	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		483	$SLOT_QUEUE->ready;
		484	$sig->wait;
309	}	485	}
310		486
311	=item cf::async { BLOCK }	487	=item cf::async { BLOCK }
312		488
313	Currently the same as Coro::async_pool, meaning you cannot use	489	Currently the same as Coro::async_pool, meaning you cannot use
…		…
318		494
319	BEGIN { *async = \&Coro::async_pool }	495	BEGIN { *async = \&Coro::async_pool }
320		496
321	=item cf::sync_job { BLOCK }	497	=item cf::sync_job { BLOCK }
322		498
323	The design of crossfire+ requires that the main coro ($Coro::main) is	499	The design of Deliantra requires that the main coroutine ($Coro::main)
324	always able to handle events or runnable, as crossfire+ is only partly	500	is always able to handle events or runnable, as Deliantra is only
325	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	501	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		502	acceptable.
326		503
327	If it must be done, put the blocking parts into C<sync_job>. This will run	504	If it must be done, put the blocking parts into C<sync_job>. This will run
328	the given BLOCK in another coroutine while waiting for the result. The	505	the given BLOCK in another coroutine while waiting for the result. The
329	server will be frozen during this time, so the block should either finish	506	server will be frozen during this time, so the block should either finish
330	fast or be very important.	507	fast or be very important.
…		…
333		510
334	sub sync_job(&) {	511	sub sync_job(&) {
335	my ($job) = @_;	512	my ($job) = @_;
336		513
337	if ($Coro::current == $Coro::main) {	514	if ($Coro::current == $Coro::main) {
338	my $time = Event::time;	515	my $time = AE::time;
339		516
340	# this is the main coro, too bad, we have to block	517	# this is the main coro, too bad, we have to block
341	# till the operation succeeds, freezing the server :/	518	# till the operation succeeds, freezing the server :/
342		519
343	# TODO: use suspend/resume instead	520	LOG llevError, Carp::longmess "sync job";#d#
344	# (but this is cancel-safe)	521
345	my $freeze_guard = freeze_mainloop;	522	my $freeze_guard = freeze_mainloop;
346		523
347	my $busy = 1;	524	my $busy = 1;
348	my @res;	525	my @res;
349		526
350	(async {	527	(async {
		528	$Coro::current->desc ("sync job coro");
351	@res = eval { $job->() };	529	@res = eval { $job->() };
352	warn $@ if $@;	530	warn $@ if $@;
353	undef $busy;	531	undef $busy;
354	})->prio (Coro::PRIO_MAX);	532	})->prio (Coro::PRIO_MAX);
355		533
356	while ($busy) {	534	while ($busy) {
357	Coro::cede or Event::one_event;	535	if (Coro::nready) {
		536	Coro::cede_notself;
		537	} else {
		538	EV::loop EV::LOOP_ONESHOT;
358	}	539	}
		540	}
359		541
360	$time = Event::time - $time;	542	my $time = AE::time - $time;
361		543
362	LOG llevError | logBacktrace, Carp::longmess "long sync job"
363	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
364
365	$tick_start += $time; # do not account sync jobs to server load	544	$TICK_START += $time; # do not account sync jobs to server load
366		545
367	wantarray ? @res : $res[0]	546	wantarray ? @res : $res[0]
368	} else {	547	} else {
369	# we are in another coroutine, how wonderful, everything just works	548	# we are in another coroutine, how wonderful, everything just works
370		549
…		…
390	$EXT_CORO{$coro+0} = $coro;	569	$EXT_CORO{$coro+0} = $coro;
391		570
392	$coro	571	$coro
393	}	572	}
394		573
395	sub write_runtime {	574	=item fork_call { }, $args
396	my $runtime = "$LOCALDIR/runtime";
397		575
398	# first touch the runtime file to show we are still running:	576	Executes the given code block with the given arguments in a seperate
399	# the fsync below can take a very very long time.	577	process, returning the results. Everything must be serialisable with
		578	Coro::Storable. May, of course, block. Note that the executed sub may
		579	never block itself or use any form of event handling.
400		580
401	IO::AIO::aio_utime $runtime, undef, undef;	581	=cut
402		582
403	my $guard = cf::lock_acquire "write_runtime";	583	sub fork_call(&@) {
		584	my ($cb, @args) = @_;
404		585
405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	586	# we seemingly have to make a local copy of the whole thing,
406	or return;	587	# otherwise perl prematurely frees the stuff :/
		588	# TODO: investigate and fix (likely this will be rather laborious)
407		589
408	my $value = $cf::RUNTIME + 90 + 10;	590	my @res = Coro::Util::fork_eval {
409	# 10 is the runtime save interval, for a monotonic clock	591	reset_signals;
410	# 60 allows for the watchdog to kill the server.	592	&$cb
		593	}, @args;
411		594
412	(aio_write $fh, 0, (length $value), $value, 0) <= 0	595	wantarray ? @res : $res[-1]
413	and return;	596	}
414		597
415	# always fsync - this file is important	598	sub objinfo {
416	aio_fsync $fh
417	and return;
418
419	# touch it again to show we are up-to-date
420	aio_utime $fh, undef, undef;
421
422	close $fh
423	or return;
424
425	aio_rename "$runtime~", $runtime
426	and return;
427
428	warn "runtime file written.\n";
429
430	1	599	(
		600	"counter value" => cf::object::object_count,
		601	"objects created" => cf::object::create_count,
		602	"objects destroyed" => cf::object::destroy_count,
		603	"freelist size" => cf::object::free_count,
		604	"allocated objects" => cf::object::objects_size,
		605	"active objects" => cf::object::actives_size,
		606	)
		607	}
		608
		609	=item $coin = coin_from_name $name
		610
		611	=cut
		612
		613	our %coin_alias = (
		614	"silver" => "silvercoin",
		615	"silvercoin" => "silvercoin",
		616	"silvercoins" => "silvercoin",
		617	"gold" => "goldcoin",
		618	"goldcoin" => "goldcoin",
		619	"goldcoins" => "goldcoin",
		620	"platinum" => "platinacoin",
		621	"platinumcoin" => "platinacoin",
		622	"platinumcoins" => "platinacoin",
		623	"platina" => "platinacoin",
		624	"platinacoin" => "platinacoin",
		625	"platinacoins" => "platinacoin",
		626	"royalty" => "royalty",
		627	"royalties" => "royalty",
		628	);
		629
		630	sub coin_from_name($) {
		631	$coin_alias{$_[0]}
		632	? cf::arch::find $coin_alias{$_[0]}
		633	: undef
		634	}
		635
		636	=item $value = cf::db_get $family => $key
		637
		638	Returns a single value from the environment database.
		639
		640	=item cf::db_put $family => $key => $value
		641
		642	Stores the given C<$value> in the family. It can currently store binary
		643	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		644
		645	=item $db = cf::db_table "name"
		646
		647	Create and/or open a new database table. The string must not be "db" and must be unique
		648	within each server.
		649
		650	=cut
		651
		652	sub db_table($) {
		653	my ($name) = @_;
		654	my $db = BDB::db_create $DB_ENV;
		655
		656	eval {
		657	$db->set_flags (BDB::CHKSUM);
		658
		659	utf8::encode $name;
		660	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		661	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		662	cf::cleanup "db_open(db): $!" if $!;
		663	};
		664	cf::cleanup "db_open(db): $@" if $@;
		665
		666	$db
		667	}
		668
		669	our $DB;
		670
		671	sub db_init {
		672	cf::sync_job {
		673	$DB ||= db_table "db";
		674	};
		675	}
		676
		677	sub db_get($$) {
		678	my $key = "$_[0]/$_[1]";
		679
		680	cf::sync_job {
		681	BDB::db_get $DB, undef, $key, my $data;
		682
		683	$! ? ()
		684	: $data
		685	}
		686	}
		687
		688	sub db_put($$$) {
		689	BDB::dbreq_pri 4;
		690	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		691	}
		692
		693	=item cf::cache $id => [$paths...], $processversion => $process
		694
		695	Generic caching function that returns the value of the resource $id,
		696	caching and regenerating as required.
		697
		698	This function can block.
		699
		700	=cut
		701
		702	sub cache {
		703	my ($id, $src, $processversion, $process) = @_;
		704
		705	my $meta =
		706	join "\x00",
		707	$processversion,
		708	map {
		709	aio_stat $_
		710	and Carp::croak "$_: $!";
		711
		712	($_, (stat _)[7,9])
		713	} @$src;
		714
		715	my $dbmeta = db_get cache => "$id/meta";
		716	if ($dbmeta ne $meta) {
		717	# changed, we may need to process
		718
		719	my @data;
		720	my $md5;
		721
		722	for (0 .. $#$src) {
		723	0 <= aio_load $src->[$_], $data[$_]
		724	or Carp::croak "$src->[$_]: $!";
		725	}
		726
		727	# if processing is expensive, check
		728	# checksum first
		729	if (1) {
		730	$md5 =
		731	join "\x00",
		732	$processversion,
		733	map {
		734	cf::cede_to_tick;
		735	($src->[$_], Digest::MD5::md5_hex $data[$_])
		736	} 0.. $#$src;
		737
		738
		739	my $dbmd5 = db_get cache => "$id/md5";
		740	if ($dbmd5 eq $md5) {
		741	db_put cache => "$id/meta", $meta;
		742
		743	return db_get cache => "$id/data";
		744	}
		745	}
		746
		747	my $t1 = Time::HiRes::time;
		748	my $data = $process->(\@data);
		749	my $t2 = Time::HiRes::time;
		750
		751	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		752
		753	db_put cache => "$id/data", $data;
		754	db_put cache => "$id/md5" , $md5;
		755	db_put cache => "$id/meta", $meta;
		756
		757	return $data;
		758	}
		759
		760	db_get cache => "$id/data"
431	}	761	}
432		762
433	=item cf::datalog type => key => value, ...	763	=item cf::datalog type => key => value, ...
434		764
435	Log a datalog packet of the given type with the given key-value pairs.	765	Log a datalog packet of the given type with the given key-value pairs.
…		…
447		777
448	#############################################################################	778	#############################################################################
449		779
450	=head2 ATTACHABLE OBJECTS	780	=head2 ATTACHABLE OBJECTS
451		781
452	Many objects in crossfire are so-called attachable objects. That means you can	782	Many objects in deliantra are so-called attachable objects. That means you can
453	attach callbacks/event handlers (a collection of which is called an "attachment")	783	attach callbacks/event handlers (a collection of which is called an "attachment")
454	to it. All such attachable objects support the following methods.	784	to it. All such attachable objects support the following methods.
455		785
456	In the following description, CLASS can be any of C<global>, C<object>	786	In the following description, CLASS can be any of C<global>, C<object>
457	C<player>, C<client> or C<map> (i.e. the attachable objects in	787	C<player>, C<client> or C<map> (i.e. the attachable objects in
458	crossfire+).	788	Deliantra).
459		789
460	=over 4	790	=over 4
461		791
462	=item $attachable->attach ($attachment, key => $value...)	792	=item $attachable->attach ($attachment, key => $value...)
463		793
…		…
507	=item cf::CLASS::attachment $name, ...	837	=item cf::CLASS::attachment $name, ...
508		838
509	Register an attachment by C<$name> through which attachable objects of the	839	Register an attachment by C<$name> through which attachable objects of the
510	given CLASS can refer to this attachment.	840	given CLASS can refer to this attachment.
511		841
512	Some classes such as crossfire maps and objects can specify attachments	842	Some classes such as deliantra maps and objects can specify attachments
513	that are attached at load/instantiate time, thus the need for a name.	843	that are attached at load/instantiate time, thus the need for a name.
514		844
515	These calls expect any number of the following handler/hook descriptions:	845	These calls expect any number of the following handler/hook descriptions:
516		846
517	=over 4	847	=over 4
…		…
665	_attach $registry, $klass, @attach;	995	_attach $registry, $klass, @attach;
666	}	996	}
667		997
668	$obj->{$name} = \%arg;	998	$obj->{$name} = \%arg;
669	} else {	999	} else {
670	warn "object uses attachment '$name' that is not available, postponing.\n";	1000	warn "object uses attachment '$name' which is not available, postponing.\n";
671	}	1001	}
672		1002
673	$obj->{_attachment}{$name} = undef;	1003	$obj->{_attachment}{$name} = undef;
674	}	1004	}
675		1005
…		…
715	";	1045	";
716	die if $@;	1046	die if $@;
717	}	1047	}
718		1048
719	our $override;	1049	our $override;
720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1050	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721		1051
722	sub override {	1052	sub override {
723	$override = 1;	1053	$override = 1;
724	@invoke_results = ();	1054	@INVOKE_RESULTS = (@_);
725	}	1055	}
726		1056
727	sub do_invoke {	1057	sub do_invoke {
728	my $event = shift;	1058	my $event = shift;
729	my $callbacks = shift;	1059	my $callbacks = shift;
730		1060
731	@invoke_results = ();	1061	@INVOKE_RESULTS = ();
732		1062
733	local $override;	1063	local $override;
734		1064
735	for (@$callbacks) {	1065	for (@$callbacks) {
736	eval { &{$_->[1]} };	1066	eval { &{$_->[1]} };
…		…
745	}	1075	}
746		1076
747	0	1077	0
748	}	1078	}
749		1079
750	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1080	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
751		1081
752	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1082	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
753		1083
754	Generate an object-specific event with the given arguments.	1084	Generate an object-specific event with the given arguments.
755		1085
756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1086	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
757	removed in future versions), and there is no public API to access override	1087	removed in future versions), and there is no public API to access override
758	results (if you must, access C<@cf::invoke_results> directly).	1088	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		1089
760	=back	1090	=back
761		1091
762	=cut	1092	=cut
763		1093
764	#############################################################################	1094	#############################################################################
765	# object support	1095	# object support
		1096
		1097	sub _object_equal($$);
		1098	sub _object_equal($$) {
		1099	my ($a, $b) = @_;
		1100
		1101	return 0 unless (ref $a) eq (ref $b);
		1102
		1103	if ("HASH" eq ref $a) {
		1104	my @ka = keys %$a;
		1105	my @kb = keys %$b;
		1106
		1107	return 0 if @ka != @kb;
		1108
		1109	for (0 .. $#ka) {
		1110	return 0 unless $ka[$_] eq $kb[$_];
		1111	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1112	}
		1113
		1114	} elsif ("ARRAY" eq ref $a) {
		1115
		1116	return 0 if @$a != @$b;
		1117
		1118	for (0 .. $#$a) {
		1119	return 0 unless _object_equal $a->[$_], $b->[$_];
		1120	}
		1121
		1122	} elsif ($a ne $b) {
		1123	return 0;
		1124	}
		1125
		1126	1
		1127	}
		1128
		1129	our $SLOW_MERGES;#d#
		1130	sub _can_merge {
		1131	my ($ob1, $ob2) = @_;
		1132
		1133	++$SLOW_MERGES;#d#
		1134
		1135	# we do the slow way here
		1136	return _object_equal $ob1, $ob2
		1137	}
766		1138
767	sub reattach {	1139	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	1140	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	1141	my ($obj) = @_;
770		1142
		1143	# no longer needed after getting rid of delete_package?
771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1144	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
772		1145
773	my $registry = $obj->registry;	1146	my $registry = $obj->registry;
774		1147
775	@$registry = ();	1148	@$registry = ();
776		1149
…		…
791	cf::attachable->attach (	1164	cf::attachable->attach (
792	prio => -1000000,	1165	prio => -1000000,
793	on_instantiate => sub {	1166	on_instantiate => sub {
794	my ($obj, $data) = @_;	1167	my ($obj, $data) = @_;
795		1168
796	$data = from_json $data;	1169	$data = decode_json $data;
797		1170
798	for (@$data) {	1171	for (@$data) {
799	my ($name, $args) = @$_;	1172	my ($name, $args) = @$_;
800		1173
801	$obj->attach ($name, %{$args || {} });	1174	$obj->attach ($name, %{$args || {} });
…		…
817	sub object_freezer_save {	1190	sub object_freezer_save {
818	my ($filename, $rdata, $objs) = @_;	1191	my ($filename, $rdata, $objs) = @_;
819		1192
820	sync_job {	1193	sync_job {
821	if (length $$rdata) {	1194	if (length $$rdata) {
		1195	utf8::decode (my $decname = $filename);
822	warn sprintf "saving %s (%d,%d)\n",	1196	warn sprintf "saving %s (%d,%d)\n",
823	$filename, length $$rdata, scalar @$objs;	1197	$decname, length $$rdata, scalar @$objs;
824		1198
825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1199	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
826	chmod SAVE_MODE, $fh;	1200	aio_chmod $fh, SAVE_MODE;
827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1201	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
828	aio_fsync $fh if $cf::USE_FSYNC;	1202	if ($cf::USE_FSYNC) {
		1203	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1204	aio_fsync $fh;
		1205	}
829	close $fh;	1206	aio_close $fh;
830		1207
831	if (@$objs) {	1208	if (@$objs) {
832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1209	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
833	chmod SAVE_MODE, $fh;	1210	aio_chmod $fh, SAVE_MODE;
834	my $data = Storable::nfreeze { version => 1, objs => $objs };	1211	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
835	aio_write $fh, 0, (length $data), $data, 0;	1212	aio_write $fh, 0, (length $data), $data, 0;
836	aio_fsync $fh if $cf::USE_FSYNC;	1213	if ($cf::USE_FSYNC) {
		1214	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1215	aio_fsync $fh;
		1216	}
837	close $fh;	1217	aio_close $fh;
838	aio_rename "$filename.pst~", "$filename.pst";	1218	aio_rename "$filename.pst~", "$filename.pst";
839	}	1219	}
840	} else {	1220	} else {
841	aio_unlink "$filename.pst";	1221	aio_unlink "$filename.pst";
842	}	1222	}
843		1223
844	aio_rename "$filename~", $filename;	1224	aio_rename "$filename~", $filename;
		1225
		1226	$filename =~ s%/[^/]+$%%;
		1227	aio_pathsync $filename if $cf::USE_FSYNC;
845	} else {	1228	} else {
846	warn "FATAL: $filename~: $!\n";	1229	warn "unable to save objects: $filename~: $!\n";
847	}	1230	}
848	} else {	1231	} else {
849	aio_unlink $filename;	1232	aio_unlink $filename;
850	aio_unlink "$filename.pst";	1233	aio_unlink "$filename.pst";
851	}	1234	}
852	}	1235	};
853	}	1236	}
854		1237
855	sub object_freezer_as_string {	1238	sub object_freezer_as_string {
856	my ($rdata, $objs) = @_;	1239	my ($rdata, $objs) = @_;
857		1240
…		…
869	or return;	1252	or return;
870		1253
871	unless (aio_stat "$filename.pst") {	1254	unless (aio_stat "$filename.pst") {
872	(aio_load "$filename.pst", $av) >= 0	1255	(aio_load "$filename.pst", $av) >= 0
873	or return;	1256	or return;
		1257
874	$av = eval { (Storable::thaw $av)->{objs} };	1258	my $st = eval { Coro::Storable::thaw $av };
		1259	$av = $st->{objs};
875	}	1260	}
876		1261
		1262	utf8::decode (my $decname = $filename);
877	warn sprintf "loading %s (%d)\n",	1263	warn sprintf "loading %s (%d,%d)\n",
878	$filename, length $data, scalar @{$av || []};	1264	$decname, length $data, scalar @{$av || []};
		1265
879	return ($data, $av);	1266	($data, $av)
880	}	1267	}
		1268
		1269	=head2 COMMAND CALLBACKS
		1270
		1271	=over 4
		1272
		1273	=cut
881		1274
882	#############################################################################	1275	#############################################################################
883	# command handling &c	1276	# command handling &c
884		1277
885	=item cf::register_command $name => \&callback($ob,$args);	1278	=item cf::register_command $name => \&callback($ob,$args);
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1291	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1292	}
900		1293
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1294	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1295
903	Register a callbackf ro execution when the client sends an extcmd packet.	1296	Register a callback for execution when the client sends an (synchronous)
		1297	extcmd packet. Ext commands will be processed in the order they are
		1298	received by the server, like other user commands. The first argument is
		1299	the logged-in player. Ext commands can only be processed after a player
		1300	has logged in successfully.
904		1301
905	If the callback returns something, it is sent back as if reply was being	1302	If the callback returns something, it is sent back as if reply was being
906	called.	1303	called.
907		1304
		1305	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1306
		1307	Register a callback for execution when the client sends an (asynchronous)
		1308	exticmd packet. Exti commands are processed by the server as soon as they
		1309	are received, i.e. out of order w.r.t. other commands. The first argument
		1310	is a client socket. Exti commands can be received anytime, even before
		1311	log-in.
		1312
		1313	If the callback returns something, it is sent back as if reply was being
		1314	called.
		1315
908	=cut	1316	=cut
909		1317
910	sub register_extcmd {	1318	sub register_extcmd {
911	my ($name, $cb) = @_;	1319	my ($name, $cb) = @_;
912		1320
913	$EXTCMD{$name} = $cb;	1321	$EXTCMD{$name} = $cb;
914	}	1322	}
915		1323
		1324	sub register_exticmd {
		1325	my ($name, $cb) = @_;
		1326
		1327	$EXTICMD{$name} = $cb;
		1328	}
		1329
		1330	use File::Glob ();
		1331
916	cf::player->attach (	1332	cf::player->attach (
917	on_command => sub {	1333	on_unknown_command => sub {
918	my ($pl, $name, $params) = @_;	1334	my ($pl, $name, $params) = @_;
919		1335
920	my $cb = $COMMAND{$name}	1336	my $cb = $COMMAND{$name}
921	or return;	1337	or return;
922		1338
…		…
927	cf::override;	1343	cf::override;
928	},	1344	},
929	on_extcmd => sub {	1345	on_extcmd => sub {
930	my ($pl, $buf) = @_;	1346	my ($pl, $buf) = @_;
931		1347
932	my $msg = eval { from_json $buf };	1348	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
933		1349
934	if (ref $msg) {	1350	if (ref $msg) {
		1351	my ($type, $reply, @payload) =
		1352	"ARRAY" eq ref $msg
		1353	? @$msg
		1354	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1355
		1356	my @reply;
		1357
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1358	if (my $cb = $EXTCMD{$type}) {
936	if (my %reply = $cb->($pl, $msg)) {	1359	@reply = $cb->($pl, @payload);
937	$pl->ext_reply ($msg->{msgid}, %reply);
938	}
939	}	1360	}
		1361
		1362	$pl->ext_reply ($reply, @reply)
		1363	if $reply;
		1364
940	} else {	1365	} else {
941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1366	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
942	}	1367	}
943		1368
944	cf::override;	1369	cf::override;
945	},	1370	},
946	);	1371	);
947		1372
		1373	# "readahead" all extensions
948	sub load_extension {	1374	sub cache_extensions {
949	my ($path) = @_;	1375	my $grp = IO::AIO::aio_group;
950		1376
951	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1377	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
952	my $base = $1;	1378	for (grep /\.ext$/, @{$_[0]}) {
953	my $pkg = $1;	1379	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
954	$pkg =~ s/[^[:word:]]/_/g;
955	$pkg = "ext::$pkg";
956
957	warn "... loading '$path' into '$pkg'\n";
958
959	open my $fh, "<:utf8", $path
960	or die "$path: $!";
961
962	my $source =
963	"package $pkg; use strict; use utf8;\n"
964	. "#line 1 \"$path\"\n{\n"
965	. (do { local $/; <$fh> })
966	. "\n};\n1";
967
968	unless (eval $source) {
969	my $msg = $@ ? "$path: $@\n"
970	: "extension disabled.\n";
971	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
972	warn $@;
973	warn "mandatory extension failed to load, exiting.\n";
974	exit 1;
975	}	1380	}
976	die $@;
977	}	1381	};
978		1382
979	push @EXTS, $pkg;	1383	$grp
980	}	1384	}
981		1385
982	sub load_extensions {	1386	sub load_extensions {
		1387	cf::sync_job {
		1388	my %todo;
		1389
983	for my $ext (<$LIBDIR/*.ext>) {	1390	for my $path (<$LIBDIR/*.ext>) {
984	next unless -r $ext;	1391	next unless -r $path;
985	eval {	1392
986	load_extension $ext;	1393	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1394	my $base = $1;
		1395	my $pkg = $1;
		1396	$pkg =~ s/[^[:word:]]/_/g;
		1397	$pkg = "ext::$pkg";
		1398
		1399	open my $fh, "<:utf8", $path
		1400	or die "$path: $!";
		1401
		1402	my $source = do { local $/; <$fh> };
		1403
		1404	my %ext = (
		1405	path => $path,
		1406	base => $base,
		1407	pkg => $pkg,
		1408	);
		1409
		1410	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1411	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1412
		1413	$ext{source} =
		1414	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1415	. "#line 1 \"$path\"\n{\n"
		1416	. $source
		1417	. "\n};\n1";
		1418
		1419	$todo{$base} = \%ext;
		1420	}
		1421
		1422	my $pass = 0;
		1423	my %done;
		1424	while (%todo) {
		1425	my $progress;
		1426
		1427	++$pass;
		1428
		1429	ext:
		1430	while (my ($k, $v) = each %todo) {
		1431	for (split /,\s*/, $v->{meta}{depends}) {
		1432	next ext
		1433	unless exists $done{$_};
		1434	}
		1435
		1436	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1437
		1438	my $active = eval $v->{source};
		1439
		1440	if (length $@) {
		1441	warn "$v->{path}: $@\n";
		1442
		1443	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1444	if exists $v->{meta}{mandatory};
		1445
		1446	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1447	delete $todo{$k};
		1448	} else {
		1449	$done{$k} = delete $todo{$k};
		1450	push @EXTS, $v->{pkg};
		1451	$progress = 1;
		1452
		1453	warn "$v->{base}: extension inactive.\n"
		1454	unless $active;
		1455	}
987	1	1456	}
988	} or warn "$ext not loaded: $@";	1457
		1458	unless ($progress) {
		1459	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1460
		1461	while (my ($k, $v) = each %todo) {
		1462	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1463	if exists $v->{meta}{mandatory};
		1464	}
		1465	}
		1466	}
989	}	1467	};
990	}	1468	}
991		1469
992	#############################################################################	1470	#############################################################################
993		1471
		1472	=back
		1473
994	=head2 CORE EXTENSIONS	1474	=head2 CORE EXTENSIONS
995		1475
996	Functions and methods that extend core crossfire objects.	1476	Functions and methods that extend core deliantra objects.
997		1477
998	=cut	1478	=cut
999		1479
1000	package cf::player;	1480	package cf::player;
1001		1481
1002	use Coro::AIO;	1482	use Coro::AIO;
1003		1483
1004	=head3 cf::player	1484	=head3 cf::player
1005		1485
1006	=over 4	1486	=over 4
		1487
		1488	=item cf::player::num_playing
		1489
		1490	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1491
		1492	=cut
		1493
		1494	sub num_playing {
		1495	scalar grep
		1496	$_->ob->map
		1497	&& !$_->hidden
		1498	&& !$_->ob->flag (cf::FLAG_WIZ),
		1499	cf::player::list
		1500	}
1007		1501
1008	=item cf::player::find $login	1502	=item cf::player::find $login
1009		1503
1010	Returns the given player object, loading it if necessary (might block).	1504	Returns the given player object, loading it if necessary (might block).
1011		1505
…		…
1030		1524
1031	sub exists($) {	1525	sub exists($) {
1032	my ($login) = @_;	1526	my ($login) = @_;
1033		1527
1034	$cf::PLAYER{$login}	1528	$cf::PLAYER{$login}
1035	or cf::sync_job { !aio_stat path $login }	1529	or !aio_stat path $login
1036	}	1530	}
1037		1531
1038	sub find($) {	1532	sub find($) {
1039	return $cf::PLAYER{$_[0]} || do {	1533	return $cf::PLAYER{$_[0]} || do {
1040	my $login = $_[0];	1534	my $login = $_[0];
…		…
1047	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1541	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1048	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1542	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1049	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1543	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1050	aio_unlink +(playerdir $login) . "/$login.pl";	1544	aio_unlink +(playerdir $login) . "/$login.pl";
1051		1545
1052	my $pl = load_pl path $login	1546	my $f = new_from_file cf::object::thawer path $login
1053	or return;	1547	or return;
		1548
		1549	my $pl = cf::player::load_pl $f
		1550	or return;
		1551
		1552	local $cf::PLAYER_LOADING{$login} = $pl;
		1553	$f->resolve_delayed_derefs;
1054	$cf::PLAYER{$login} = $pl	1554	$cf::PLAYER{$login} = $pl
1055	}	1555	}
1056	}	1556	}
1057	}	1557	}
		1558
		1559	cf::player->attach (
		1560	on_load => sub {
		1561	my ($pl, $path) = @_;
		1562
		1563	# restore slots saved in save, below
		1564	my $slots = delete $pl->{_slots};
		1565
		1566	$pl->ob->current_weapon ($slots->[0]);
		1567	$pl->combat_ob ($slots->[1]);
		1568	$pl->ranged_ob ($slots->[2]);
		1569	},
		1570	);
1058		1571
1059	sub save($) {	1572	sub save($) {
1060	my ($pl) = @_;	1573	my ($pl) = @_;
1061		1574
1062	return if $pl->{deny_save};	1575	return if $pl->{deny_save};
…		…
1067	return if $pl->{deny_save};	1580	return if $pl->{deny_save};
1068		1581
1069	aio_mkdir playerdir $pl, 0770;	1582	aio_mkdir playerdir $pl, 0770;
1070	$pl->{last_save} = $cf::RUNTIME;	1583	$pl->{last_save} = $cf::RUNTIME;
1071		1584
		1585	cf::get_slot 0.01;
		1586
		1587	# save slots, to be restored later
		1588	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1589
1072	$pl->save_pl ($path);	1590	$pl->save_pl ($path);
1073	Coro::cede;	1591	cf::cede_to_tick;
1074	}	1592	}
1075		1593
1076	sub new($) {	1594	sub new($) {
1077	my ($login) = @_;	1595	my ($login) = @_;
1078		1596
…		…
1084	$cf::PLAYER{$login} = $self;	1602	$cf::PLAYER{$login} = $self;
1085		1603
1086	$self	1604	$self
1087	}	1605	}
1088		1606
		1607	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1608
		1609	=cut
		1610
		1611	sub send_msg {
		1612	my $ns = shift->ns
		1613	or return;
		1614	$ns->send_msg (@_);
		1615	}
		1616
1089	=item $pl->quit_character	1617	=item $pl->quit_character
1090		1618
1091	Nukes the player without looking back. If logged in, the connection will	1619	Nukes the player without looking back. If logged in, the connection will
1092	be destroyed. May block for a long time.	1620	be destroyed. May block for a long time.
1093		1621
…		…
1097	my ($pl) = @_;	1625	my ($pl) = @_;
1098		1626
1099	my $name = $pl->ob->name;	1627	my $name = $pl->ob->name;
1100		1628
1101	$pl->{deny_save} = 1;	1629	$pl->{deny_save} = 1;
1102	$pl->password ("*"); # this should lock out the player until we nuked the dir	1630	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1103		1631
1104	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1632	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1105	$pl->deactivate;	1633	$pl->deactivate;
		1634	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1635	$pl->ob->check_score;
1106	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1636	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1107	$pl->ns->destroy if $pl->ns;	1637	$pl->ns->destroy if $pl->ns;
1108		1638
1109	my $path = playerdir $pl;	1639	my $path = playerdir $pl;
1110	my $temp = "$path~$cf::RUNTIME~deleting~";	1640	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1146	or return [];	1676	or return [];
1147		1677
1148	my @logins;	1678	my @logins;
1149		1679
1150	for my $login (@$dirs) {	1680	for my $login (@$dirs) {
		1681	my $path = path $login;
		1682
		1683	# a .pst is a dead give-away for a valid player
		1684	# if no pst file found, open and chekc for blocked users
		1685	if (aio_stat "$path.pst") {
1151	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1686	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1152	aio_read $fh, 0, 512, my $buf, 0 or next;	1687	aio_read $fh, 0, 512, my $buf, 0 or next;
1153	$buf !~ /^password -------------$/m or next; # official not-valid tag	1688	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1689	}
1154		1690
1155	utf8::decode $login;	1691	utf8::decode $login;
1156	push @logins, $login;	1692	push @logins, $login;
1157	}	1693	}
1158		1694
…		…
1185	}	1721	}
1186		1722
1187	\@paths	1723	\@paths
1188	}	1724	}
1189		1725
		1726	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1727
		1728	Expand deliantra pod fragments into protocol xml.
		1729
1190	=item $player->ext_reply ($msgid, %msg)	1730	=item $player->ext_reply ($msgid, @msg)
1191		1731
1192	Sends an ext reply to the player.	1732	Sends an ext reply to the player.
1193		1733
1194	=cut	1734	=cut
1195		1735
1196	sub ext_reply($$%) {	1736	sub ext_reply($$@) {
1197	my ($self, $id, %msg) = @_;	1737	my ($self, $id, @msg) = @_;
1198		1738
1199	$msg{msgid} = $id;	1739	$self->ns->ext_reply ($id, @msg)
1200
1201	$self->send ("ext " . cf::to_json \%msg);
1202	}	1740	}
1203		1741
1204	=item $player->ext_event ($type, %msg)	1742	=item $player->ext_msg ($type, @msg)
1205		1743
1206	Sends an ext event to the client.	1744	Sends an ext event to the client.
1207		1745
1208	=cut	1746	=cut
1209		1747
1210	sub ext_event($$%) {	1748	sub ext_msg($$@) {
1211	my ($self, $type, %msg) = @_;	1749	my ($self, $type, @msg) = @_;
1212		1750
1213	$self->ns->ext_event ($type, %msg);	1751	$self->ns->ext_msg ($type, @msg);
1214	}	1752	}
1215		1753
1216	=head3 cf::region	1754	=head3 cf::region
1217		1755
1218	=over 4	1756	=over 4
…		…
1221		1759
1222	package cf::region;	1760	package cf::region;
1223		1761
1224	=item cf::region::find_by_path $path	1762	=item cf::region::find_by_path $path
1225		1763
1226	Tries to decuce the probable region for a map knowing only its path.	1764	Tries to decuce the likely region for a map knowing only its path.
1227		1765
1228	=cut	1766	=cut
1229		1767
1230	sub find_by_path($) {	1768	sub find_by_path($) {
1231	my ($path) = @_;	1769	my ($path) = @_;
1232		1770
1233	my ($match, $specificity);	1771	my ($match, $specificity);
1234		1772
1235	for my $region (list) {	1773	for my $region (list) {
1236	if ($region->match && $path =~ $region->match) {	1774	if ($region->{match} && $path =~ $region->{match}) {
1237	($match, $specificity) = ($region, $region->specificity)	1775	($match, $specificity) = ($region, $region->specificity)
1238	if $region->specificity > $specificity;	1776	if $region->specificity > $specificity;
1239	}	1777	}
1240	}	1778	}
1241		1779
…		…
1262	our $MAX_RESET = 3600;	1800	our $MAX_RESET = 3600;
1263	our $DEFAULT_RESET = 3000;	1801	our $DEFAULT_RESET = 3000;
1264		1802
1265	sub generate_random_map {	1803	sub generate_random_map {
1266	my ($self, $rmp) = @_;	1804	my ($self, $rmp) = @_;
		1805
		1806	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1807
1267	# mit "rum" bekleckern, nicht	1808	# mit "rum" bekleckern, nicht
1268	$self->_create_random_map (	1809	$self->_create_random_map (
1269	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1810	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1270	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1811	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1271	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1812	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1272	$rmp->{exit_on_final_map},	1813	$rmp->{exit_on_final_map},
1273	$rmp->{xsize}, $rmp->{ysize},	1814	$rmp->{xsize}, $rmp->{ysize},
1274	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1815	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1275	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1816	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1305	my ($self, $merge) = @_;	1846	my ($self, $merge) = @_;
1306		1847
1307	# we have to keep some variables in memory intact	1848	# we have to keep some variables in memory intact
1308	local $self->{path};	1849	local $self->{path};
1309	local $self->{load_path};	1850	local $self->{load_path};
1310	local $self->{deny_save};
1311	local $self->{deny_reset};
1312		1851
1313	$self->SUPER::thawer_merge ($merge);	1852	$self->SUPER::thawer_merge ($merge);
1314	}	1853	}
1315		1854
1316	sub normalise {	1855	sub normalise {
…		…
1363	$self->init; # pass $1 etc.	1902	$self->init; # pass $1 etc.
1364	return $self;	1903	return $self;
1365	}	1904	}
1366	}	1905	}
1367		1906
1368	Carp::carp "unable to resolve path '$path' (base '$base').";	1907	Carp::cluck "unable to resolve path '$path' (base '$base').";
1369	()	1908	()
1370	}	1909	}
1371		1910
1372	sub init {	1911	sub init {
1373	my ($self) = @_;	1912	my ($self) = @_;
…		…
1395		1934
1396	# the temporary/swap location	1935	# the temporary/swap location
1397	sub save_path {	1936	sub save_path {
1398	my ($self) = @_;	1937	my ($self) = @_;
1399		1938
1400	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1939	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1401	"$TMPDIR/$path.map"	1940	"$TMPDIR/$path.map"
1402	}	1941	}
1403		1942
1404	# the unique path, undef == no special unique path	1943	# the unique path, undef == no special unique path
1405	sub uniq_path {	1944	sub uniq_path {
1406	my ($self) = @_;	1945	my ($self) = @_;
1407		1946
1408	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1947	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1409	"$UNIQUEDIR/$path"	1948	"$UNIQUEDIR/$path"
1410	}	1949	}
1411		1950
1412	# and all this just because we cannot iterate over	1951	sub decay_objects {
1413	# all maps in C++...
1414	sub change_all_map_light {
1415	my ($change) = @_;	1952	my ($self) = @_;
1416		1953
1417	$_->change_map_light ($change)	1954	return if $self->{deny_reset};
1418	for grep $_->outdoor, values %cf::MAP;	1955
		1956	$self->do_decay_objects;
1419	}	1957	}
1420		1958
1421	sub unlink_save {	1959	sub unlink_save {
1422	my ($self) = @_;	1960	my ($self) = @_;
1423		1961
…		…
1428		1966
1429	sub load_header_from($) {	1967	sub load_header_from($) {
1430	my ($self, $path) = @_;	1968	my ($self, $path) = @_;
1431		1969
1432	utf8::encode $path;	1970	utf8::encode $path;
1433	#aio_open $path, O_RDONLY, 0	1971	my $f = new_from_file cf::object::thawer $path
1434	# or return;
1435
1436	$self->_load_header ($path)
1437	or return;	1972	or return;
		1973
		1974	$self->_load_header ($f)
		1975	or return;
		1976
		1977	local $MAP_LOADING{$self->{path}} = $self;
		1978	$f->resolve_delayed_derefs;
1438		1979
1439	$self->{load_path} = $path;	1980	$self->{load_path} = $path;
1440		1981
1441	1	1982	1
1442	}	1983	}
…		…
1481	$self->load_header_orig	2022	$self->load_header_orig
1482	or return;	2023	or return;
1483	$self->prepare_orig;	2024	$self->prepare_orig;
1484	}	2025	}
1485		2026
		2027	$self->{deny_reset} = 1
		2028	if $self->no_reset;
		2029
1486	$self->default_region (cf::region::find_by_path $self->{path})	2030	$self->default_region (cf::region::find_by_path $self->{path})
1487	unless $self->default_region;	2031	unless $self->default_region;
1488		2032
1489	1	2033	1
1490	}	2034	}
…		…
1493	sub find {	2037	sub find {
1494	my ($path, $origin) = @_;	2038	my ($path, $origin) = @_;
1495		2039
1496	$path = normalise $path, $origin && $origin->path;	2040	$path = normalise $path, $origin && $origin->path;
1497		2041
		2042	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1498	cf::lock_wait "map_find:$path";	2043	my $guard2 = cf::lock_acquire "map_find:$path";
1499		2044
1500	$cf::MAP{$path} || do {	2045	$cf::MAP{$path} || do {
1501	my $guard = cf::lock_acquire "map_find:$path";
1502	my $map = new_from_path cf::map $path	2046	my $map = new_from_path cf::map $path
1503	or return;	2047	or return;
1504		2048
1505	$map->{last_save} = $cf::RUNTIME;	2049	$map->{last_save} = $cf::RUNTIME;
1506		2050
1507	$map->load_header	2051	$map->load_header
1508	or return;	2052	or return;
1509		2053
1510	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2054	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1511	# doing this can freeze the server in a sync job, obviously	2055	# doing this can freeze the server in a sync job, obviously
1512	#$cf::WAIT_FOR_TICK->wait;	2056	#$cf::WAIT_FOR_TICK->wait;
		2057	undef $guard2;
		2058	undef $guard1;
1513	$map->reset;	2059	$map->reset;
1514	undef $guard;
1515	return find $path;	2060	return find $path;
1516	}	2061	}
1517		2062
1518	$cf::MAP{$path} = $map	2063	$cf::MAP{$path} = $map
1519	}	2064	}
1520	}	2065	}
1521		2066
1522	sub pre_load { }	2067	sub pre_load { }
1523	sub post_load { }	2068	#sub post_load { } # XS
1524		2069
1525	sub load {	2070	sub load {
1526	my ($self) = @_;	2071	my ($self) = @_;
1527		2072
1528	local $self->{deny_reset} = 1; # loading can take a long time	2073	local $self->{deny_reset} = 1; # loading can take a long time
1529		2074
1530	my $path = $self->{path};	2075	my $path = $self->{path};
1531		2076
1532	{	2077	{
1533	my $guard = cf::lock_acquire "map_load:$path";	2078	my $guard = cf::lock_acquire "map_data:$path";
1534		2079
		2080	return unless $self->valid;
1535	return if $self->in_memory != cf::MAP_SWAPPED;	2081	return unless $self->in_memory == cf::MAP_SWAPPED;
1536		2082
1537	$self->in_memory (cf::MAP_LOADING);	2083	$self->in_memory (cf::MAP_LOADING);
1538		2084
1539	$self->alloc;	2085	$self->alloc;
1540		2086
1541	$self->pre_load;	2087	$self->pre_load;
1542	Coro::cede;	2088	cf::cede_to_tick;
1543		2089
		2090	my $f = new_from_file cf::object::thawer $self->{load_path};
		2091	$f->skip_block;
1544	$self->_load_objects ($self->{load_path}, 1)	2092	$self->_load_objects ($f)
1545	or return;	2093	or return;
1546		2094
1547	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2095	$self->post_load_original
1548	if delete $self->{load_original};	2096	if delete $self->{load_original};
1549		2097
1550	if (my $uniq = $self->uniq_path) {	2098	if (my $uniq = $self->uniq_path) {
1551	utf8::encode $uniq;	2099	utf8::encode $uniq;
1552	if (aio_open $uniq, O_RDONLY, 0) {	2100	unless (aio_stat $uniq) {
		2101	if (my $f = new_from_file cf::object::thawer $uniq) {
1553	$self->clear_unique_items;	2102	$self->clear_unique_items;
1554	$self->_load_objects ($uniq, 0);	2103	$self->_load_objects ($f);
		2104	$f->resolve_delayed_derefs;
		2105	}
1555	}	2106	}
1556	}	2107	}
1557		2108
1558	Coro::cede;	2109	$f->resolve_delayed_derefs;
		2110
		2111	cf::cede_to_tick;
1559	# now do the right thing for maps	2112	# now do the right thing for maps
1560	$self->link_multipart_objects;	2113	$self->link_multipart_objects;
1561	$self->difficulty ($self->estimate_difficulty)	2114	$self->difficulty ($self->estimate_difficulty)
1562	unless $self->difficulty;	2115	unless $self->difficulty;
1563	Coro::cede;	2116	cf::cede_to_tick;
1564		2117
1565	unless ($self->{deny_activate}) {	2118	unless ($self->{deny_activate}) {
1566	$self->decay_objects;	2119	$self->decay_objects;
1567	$self->fix_auto_apply;	2120	$self->fix_auto_apply;
1568	$self->update_buttons;	2121	$self->update_buttons;
1569	Coro::cede;	2122	cf::cede_to_tick;
1570	$self->set_darkness_map;
1571	Coro::cede;
1572	$self->activate;	2123	$self->activate;
1573	}	2124	}
1574		2125
		2126	$self->{last_save} = $cf::RUNTIME;
		2127	$self->last_access ($cf::RUNTIME);
		2128
1575	$self->in_memory (cf::MAP_IN_MEMORY);	2129	$self->in_memory (cf::MAP_ACTIVE);
1576	}	2130	}
1577		2131
1578	$self->post_load;	2132	$self->post_load;
1579	}	2133	}
1580		2134
		2135	# customize the map for a given player, i.e.
		2136	# return the _real_ map. used by e.g. per-player
		2137	# maps to change the path to ~playername/mappath
1581	sub customise_for {	2138	sub customise_for {
1582	my ($self, $ob) = @_;	2139	my ($self, $ob) = @_;
1583		2140
1584	return find "~" . $ob->name . "/" . $self->{path}	2141	return find "~" . $ob->name . "/" . $self->{path}
1585	if $self->per_player;	2142	if $self->per_player;
1586		2143
		2144	# return find "?party/" . $ob->name . "/" . $self->{path}
		2145	# if $self->per_party;
		2146
1587	$self	2147	$self
1588	}	2148	}
1589		2149
1590	# find and load all maps in the 3x3 area around a map	2150	# find and load all maps in the 3x3 area around a map
1591	sub load_diag {	2151	sub load_neighbours {
1592	my ($map) = @_;	2152	my ($map) = @_;
1593		2153
1594	my @diag; # diagonal neighbours	2154	my @neigh; # diagonal neighbours
1595		2155
1596	for (0 .. 3) {	2156	for (0 .. 3) {
1597	my $neigh = $map->tile_path ($_)	2157	my $neigh = $map->tile_path ($_)
1598	or next;	2158	or next;
1599	$neigh = find $neigh, $map	2159	$neigh = find $neigh, $map
1600	or next;	2160	or next;
1601	$neigh->load;	2161	$neigh->load;
1602		2162
		2163	push @neigh,
1603	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2164	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1604	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2165	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1605	}	2166	}
1606		2167
1607	for (@diag) {	2168	for (grep defined $_->[0], @neigh) {
		2169	my ($path, $origin) = @$_;
1608	my $neigh = find @$_	2170	my $neigh = find $path, $origin
1609	or next;	2171	or next;
1610	$neigh->load;	2172	$neigh->load;
1611	}	2173	}
1612	}	2174	}
1613		2175
…		…
1618	}	2180	}
1619		2181
1620	sub do_load_sync {	2182	sub do_load_sync {
1621	my ($map) = @_;	2183	my ($map) = @_;
1622		2184
		2185	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2186	if $Coro::current == $Coro::main;
		2187
1623	cf::sync_job { $map->load };	2188	cf::sync_job { $map->load };
1624	}	2189	}
1625		2190
1626	our %MAP_PREFETCH;	2191	our %MAP_PREFETCH;
1627	our $MAP_PREFETCHER = undef;	2192	our $MAP_PREFETCHER = undef;
1628		2193
1629	sub find_async {	2194	sub find_async {
1630	my ($path, $origin) = @_;	2195	my ($path, $origin, $load) = @_;
1631		2196
1632	$path = normalise $path, $origin && $origin->{path};	2197	$path = normalise $path, $origin && $origin->{path};
1633		2198
1634	if (my $map = $cf::MAP{$path}) {	2199	if (my $map = $cf::MAP{$path}) {
1635	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2200	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1636	}	2201	}
1637		2202
1638	undef $MAP_PREFETCH{$path};	2203	$MAP_PREFETCH{$path} |= $load;
		2204
1639	$MAP_PREFETCHER ||= cf::async {	2205	$MAP_PREFETCHER ||= cf::async {
		2206	$Coro::current->{desc} = "map prefetcher";
		2207
1640	while (%MAP_PREFETCH) {	2208	while (%MAP_PREFETCH) {
1641	for my $path (keys %MAP_PREFETCH) {	2209	while (my ($k, $v) = each %MAP_PREFETCH) {
1642	my $map = find $path	2210	if (my $map = find $k) {
1643	or next;
1644	$map->load;	2211	$map->load if $v;
		2212	}
1645		2213
1646	delete $MAP_PREFETCH{$path};	2214	delete $MAP_PREFETCH{$k};
1647	}	2215	}
1648	}	2216	}
1649	undef $MAP_PREFETCHER;	2217	undef $MAP_PREFETCHER;
1650	};	2218	};
1651	$MAP_PREFETCHER->prio (6);	2219	$MAP_PREFETCHER->prio (6);
1652		2220
1653	()	2221	()
1654	}	2222	}
1655		2223
		2224	# common code, used by both ->save and ->swapout
1656	sub save {	2225	sub _save {
1657	my ($self) = @_;	2226	my ($self) = @_;
1658
1659	my $lock = cf::lock_acquire "map_data:" . $self->path;
1660		2227
1661	$self->{last_save} = $cf::RUNTIME;	2228	$self->{last_save} = $cf::RUNTIME;
1662		2229
1663	return unless $self->dirty;	2230	return unless $self->dirty;
1664		2231
…		…
1670	return if $self->{deny_save};	2237	return if $self->{deny_save};
1671		2238
1672	local $self->{last_access} = $self->last_access;#d#	2239	local $self->{last_access} = $self->last_access;#d#
1673		2240
1674	cf::async {	2241	cf::async {
		2242	$Coro::current->{desc} = "map player save";
1675	$_->contr->save for $self->players;	2243	$_->contr->save for $self->players;
1676	};	2244	};
		2245
		2246	cf::get_slot 0.02;
1677		2247
1678	if ($uniq) {	2248	if ($uniq) {
1679	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2249	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1680	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2250	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1681	} else {	2251	} else {
1682	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2252	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1683	}	2253	}
1684	}	2254	}
1685		2255
		2256	sub save {
		2257	my ($self) = @_;
		2258
		2259	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2260
		2261	$self->_save;
		2262	}
		2263
1686	sub swap_out {	2264	sub swap_out {
1687	my ($self) = @_;	2265	my ($self) = @_;
1688		2266
1689	# save first because save cedes
1690	$self->save;
1691
1692	my $lock = cf::lock_acquire "map_data:" . $self->path;	2267	my $lock = cf::lock_acquire "map_data:$self->{path}";
1693		2268
		2269	return if $self->in_memory != cf::MAP_ACTIVE;
		2270	return if $self->{deny_save};
1694	return if $self->players;	2271	return if $self->players;
1695	return if $self->in_memory != cf::MAP_IN_MEMORY;
1696	return if $self->{deny_save};
1697		2272
		2273	# first deactivate the map and "unlink" it from the core
		2274	$self->deactivate;
		2275	$_->clear_links_to ($self) for values %cf::MAP;
		2276	$self->in_memory (cf::MAP_SWAPPED);
		2277
		2278	# then atomically save
		2279	$self->_save;
		2280
		2281	# then free the map
1698	$self->clear;	2282	$self->clear;
1699	$self->in_memory (cf::MAP_SWAPPED);
1700	}	2283	}
1701		2284
1702	sub reset_at {	2285	sub reset_at {
1703	my ($self) = @_;	2286	my ($self) = @_;
1704		2287
1705	# TODO: safety, remove and allow resettable per-player maps	2288	# TODO: safety, remove and allow resettable per-player maps
1706	return 1e99 if $self->isa ("ext::map_per_player");#d#
1707	return 1e99 if $self->{deny_reset};	2289	return 1e99 if $self->{deny_reset};
1708		2290
1709	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2291	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1710	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2292	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1711		2293
…		…
1722	my ($self) = @_;	2304	my ($self) = @_;
1723		2305
1724	my $lock = cf::lock_acquire "map_data:$self->{path}";	2306	my $lock = cf::lock_acquire "map_data:$self->{path}";
1725		2307
1726	return if $self->players;	2308	return if $self->players;
1727	return if $self->isa ("ext::map_per_player");#d#
1728		2309
1729	warn "resetting map ", $self->path;	2310	warn "resetting map ", $self->path, "\n";
1730		2311
1731	$self->in_memory (cf::MAP_SWAPPED);	2312	$self->in_memory (cf::MAP_SWAPPED);
1732		2313
1733	# need to save uniques path	2314	# need to save uniques path
1734	unless ($self->{deny_save}) {	2315	unless ($self->{deny_save}) {
…		…
1738	if $uniq;	2319	if $uniq;
1739	}	2320	}
1740		2321
1741	delete $cf::MAP{$self->path};	2322	delete $cf::MAP{$self->path};
1742		2323
		2324	$self->deactivate;
		2325	$_->clear_links_to ($self) for values %cf::MAP;
1743	$self->clear;	2326	$self->clear;
1744
1745	$_->clear_links_to ($self) for values %cf::MAP;
1746		2327
1747	$self->unlink_save;	2328	$self->unlink_save;
1748	$self->destroy;	2329	$self->destroy;
1749	}	2330	}
1750		2331
1751	my $nuke_counter = "aaaa";	2332	my $nuke_counter = "aaaa";
1752		2333
1753	sub nuke {	2334	sub nuke {
1754	my ($self) = @_;	2335	my ($self) = @_;
1755		2336
		2337	{
		2338	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2339
1756	delete $cf::MAP{$self->path};	2340	delete $cf::MAP{$self->path};
1757		2341
1758	$self->unlink_save;	2342	$self->unlink_save;
1759		2343
1760	bless $self, "cf::map";	2344	bless $self, "cf::map";
1761	delete $self->{deny_reset};	2345	delete $self->{deny_reset};
1762	$self->{deny_save} = 1;	2346	$self->{deny_save} = 1;
1763	$self->reset_timeout (1);	2347	$self->reset_timeout (1);
1764	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2348	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1765		2349
1766	$cf::MAP{$self->path} = $self;	2350	$cf::MAP{$self->path} = $self;
		2351	}
1767		2352
1768	$self->reset; # polite request, might not happen	2353	$self->reset; # polite request, might not happen
		2354	}
		2355
		2356	=item $maps = cf::map::tmp_maps
		2357
		2358	Returns an arrayref with all map paths of currently instantiated and saved
		2359	maps. May block.
		2360
		2361	=cut
		2362
		2363	sub tmp_maps() {
		2364	[
		2365	map {
		2366	utf8::decode $_;
		2367	/\.map$/
		2368	? normalise $_
		2369	: ()
		2370	} @{ aio_readdir $TMPDIR or [] }
		2371	]
		2372	}
		2373
		2374	=item $maps = cf::map::random_maps
		2375
		2376	Returns an arrayref with all map paths of currently instantiated and saved
		2377	random maps. May block.
		2378
		2379	=cut
		2380
		2381	sub random_maps() {
		2382	[
		2383	map {
		2384	utf8::decode $_;
		2385	/\.map$/
		2386	? normalise "?random/$_"
		2387	: ()
		2388	} @{ aio_readdir $RANDOMDIR or [] }
		2389	]
1769	}	2390	}
1770		2391
1771	=item cf::map::unique_maps	2392	=item cf::map::unique_maps
1772		2393
1773	Returns an arrayref of paths of all shared maps that have	2394	Returns an arrayref of paths of all shared maps that have
1774	instantiated unique items. May block.	2395	instantiated unique items. May block.
1775		2396
1776	=cut	2397	=cut
1777		2398
1778	sub unique_maps() {	2399	sub unique_maps() {
1779	my $files = aio_readdir $UNIQUEDIR	2400	[
1780	or return;	2401	map {
1781
1782	my @paths;
1783
1784	for (@$files) {
1785	utf8::decode $_;	2402	utf8::decode $_;
1786	next if /\.pst$/;	2403	s/\.map$//; # TODO future compatibility hack
1787	next unless /^$PATH_SEP/o;	2404	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1788		2405	? ()
1789	push @paths, cf::map::normalise $_;	2406	: normalise $_
		2407	} @{ aio_readdir $UNIQUEDIR or [] }
1790	}	2408	]
1791
1792	\@paths
1793	}	2409	}
1794		2410
1795	package cf;	2411	=item cf::map::static_maps
		2412
		2413	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2414	file in the shared directory excluding F</styles> and F</editor>). May
		2415	block.
		2416
		2417	=cut
		2418
		2419	sub static_maps() {
		2420	my @dirs = "";
		2421	my @maps;
		2422
		2423	while (@dirs) {
		2424	my $dir = shift @dirs;
		2425
		2426	next if $dir eq "/styles" || $dir eq "/editor";
		2427
		2428	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2429	or return;
		2430
		2431	for (@$files) {
		2432	s/\.map$// or next;
		2433	utf8::decode $_;
		2434	push @maps, "$dir/$_";
		2435	}
		2436
		2437	push @dirs, map "$dir/$_", @$dirs;
		2438	}
		2439
		2440	\@maps
		2441	}
1796		2442
1797	=back	2443	=back
1798		2444
1799	=head3 cf::object	2445	=head3 cf::object
1800		2446
…		…
1804		2450
1805	=over 4	2451	=over 4
1806		2452
1807	=item $ob->inv_recursive	2453	=item $ob->inv_recursive
1808		2454
1809	Returns the inventory of the object _and_ their inventories, recursively.	2455	Returns the inventory of the object I<and> their inventories, recursively,
		2456	but I<not> the object itself.
1810		2457
1811	=cut	2458	=cut
1812		2459
1813	sub inv_recursive_;	2460	sub inv_recursive_;
1814	sub inv_recursive_ {	2461	sub inv_recursive_ {
…		…
1817		2464
1818	sub inv_recursive {	2465	sub inv_recursive {
1819	inv_recursive_ inv $_[0]	2466	inv_recursive_ inv $_[0]
1820	}	2467	}
1821		2468
		2469	=item $ref = $ob->ref
		2470
		2471	Creates and returns a persistent reference to an object that can be stored as a string.
		2472
		2473	=item $ob = cf::object::deref ($refstring)
		2474
		2475	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2476	even if the object actually exists. May block.
		2477
		2478	=cut
		2479
		2480	sub deref {
		2481	my ($ref) = @_;
		2482
		2483	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2484	my ($uuid, $name) = ($1, $2);
		2485	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2486	or return;
		2487	$pl->ob->uuid eq $uuid
		2488	or return;
		2489
		2490	$pl->ob
		2491	} else {
		2492	warn "$ref: cannot resolve object reference\n";
		2493	undef
		2494	}
		2495	}
		2496
1822	package cf;	2497	package cf;
1823		2498
1824	=back	2499	=back
1825		2500
1826	=head3 cf::object::player	2501	=head3 cf::object::player
…		…
1832	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2507	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1833	can be C<undef>. Does the right thing when the player is currently in a	2508	can be C<undef>. Does the right thing when the player is currently in a
1834	dialogue with the given NPC character.	2509	dialogue with the given NPC character.
1835		2510
1836	=cut	2511	=cut
		2512
		2513	our $SAY_CHANNEL = {
		2514	id => "say",
		2515	title => "Map",
		2516	reply => "say ",
		2517	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2518	};
		2519
		2520	our $CHAT_CHANNEL = {
		2521	id => "chat",
		2522	title => "Chat",
		2523	reply => "chat ",
		2524	tooltip => "Player chat and shouts, global to the server.",
		2525	};
1837		2526
1838	# rough implementation of a future "reply" method that works	2527	# rough implementation of a future "reply" method that works
1839	# with dialog boxes.	2528	# with dialog boxes.
1840	#TODO: the first argument must go, split into a $npc->reply_to ( method	2529	#TODO: the first argument must go, split into a $npc->reply_to ( method
1841	sub cf::object::player::reply($$$;$) {	2530	sub cf::object::player::reply($$$;$) {
…		…
1843		2532
1844	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2533	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1845		2534
1846	if ($self->{record_replies}) {	2535	if ($self->{record_replies}) {
1847	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2536	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2537
1848	} else {	2538	} else {
		2539	my $pl = $self->contr;
		2540
		2541	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2542	my $dialog = $pl->{npc_dialog};
		2543	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2544
		2545	} else {
1849	$msg = $npc->name . " says: $msg" if $npc;	2546	$msg = $npc->name . " says: $msg" if $npc;
1850	$self->message ($msg, $flags);	2547	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2548	}
1851	}	2549	}
		2550	}
		2551
		2552	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2553
		2554	=cut
		2555
		2556	sub cf::object::send_msg {
		2557	my $pl = shift->contr
		2558	or return;
		2559	$pl->send_msg (@_);
1852	}	2560	}
1853		2561
1854	=item $player_object->may ("access")	2562	=item $player_object->may ("access")
1855		2563
1856	Returns wether the given player is authorized to access resource "access"	2564	Returns wether the given player is authorized to access resource "access"
…		…
1869		2577
1870	=item $player_object->enter_link	2578	=item $player_object->enter_link
1871		2579
1872	Freezes the player and moves him/her to a special map (C<{link}>).	2580	Freezes the player and moves him/her to a special map (C<{link}>).
1873		2581
1874	The player should be reasonably safe there for short amounts of time. You	2582	The player should be reasonably safe there for short amounts of time (e.g.
1875	I<MUST> call C<leave_link> as soon as possible, though.	2583	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2584	though, as the palyer cannot control the character while it is on the link
		2585	map.
1876		2586
1877	Will never block.	2587	Will never block.
1878		2588
1879	=item $player_object->leave_link ($map, $x, $y)	2589	=item $player_object->leave_link ($map, $x, $y)
1880		2590
…		…
1905	return if UNIVERSAL::isa $self->map, "ext::map_link";	2615	return if UNIVERSAL::isa $self->map, "ext::map_link";
1906		2616
1907	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2617	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1908	if $self->map && $self->map->{path} ne "{link}";	2618	if $self->map && $self->map->{path} ne "{link}";
1909		2619
1910	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2620	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1911	}	2621	}
1912		2622
1913	sub cf::object::player::leave_link {	2623	sub cf::object::player::leave_link {
1914	my ($self, $map, $x, $y) = @_;	2624	my ($self, $map, $x, $y) = @_;
1915		2625
…		…
1932	($x, $y) = (-1, -1)	2642	($x, $y) = (-1, -1)
1933	unless (defined $x) && (defined $y);	2643	unless (defined $x) && (defined $y);
1934		2644
1935	# use -1 or undef as default coordinates, not 0, 0	2645	# use -1 or undef as default coordinates, not 0, 0
1936	($x, $y) = ($map->enter_x, $map->enter_y)	2646	($x, $y) = ($map->enter_x, $map->enter_y)
1937	if $x <=0 && $y <= 0;	2647	if $x <= 0 && $y <= 0;
1938		2648
1939	$map->load;	2649	$map->load;
1940	$map->load_diag;	2650	$map->load_neighbours;
1941		2651
1942	return unless $self->contr->active;	2652	return unless $self->contr->active;
1943	$self->activate_recursive;
1944		2653
1945	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2654	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1946	$self->enter_map ($map, $x, $y);	2655	$self->enter_map ($map, $x, $y);
1947	}
1948		2656
		2657	# only activate afterwards, to support waiting in hooks
		2658	$self->activate_recursive;
		2659	}
		2660
1949	=item $player_object->goto ($path, $x, $y[, $check->($map)])	2661	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1950		2662
1951	Moves the player to the given map-path and coordinates by first freezing	2663	Moves the player to the given map-path and coordinates by first freezing
1952	her, loading and preparing them map, calling the provided $check callback	2664	her, loading and preparing them map, calling the provided $check callback
1953	that has to return the map if sucecssful, and then unfreezes the player on	2665	that has to return the map if sucecssful, and then unfreezes the player on
1954	the new (success) or old (failed) map position.	2666	the new (success) or old (failed) map position. In either case, $done will
		2667	be called at the end of this process.
		2668
		2669	Note that $check will be called with a potentially non-loaded map, so if
		2670	it needs a loaded map it has to call C<< ->load >>.
1955		2671
1956	=cut	2672	=cut
1957		2673
1958	our $GOTOGEN;	2674	our $GOTOGEN;
1959		2675
1960	sub cf::object::player::goto {	2676	sub cf::object::player::goto {
1961	my ($self, $path, $x, $y, $check) = @_;	2677	my ($self, $path, $x, $y, $check, $done) = @_;
1962		2678
1963	# do generation counting so two concurrent goto's will be executed in-order	2679	# do generation counting so two concurrent goto's will be executed in-order
1964	my $gen = $self->{_goto_generation} = ++$GOTOGEN;	2680	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1965		2681
1966	$self->enter_link;	2682	$self->enter_link;
1967		2683
1968	(async {	2684	(async {
		2685	$Coro::current->{desc} = "player::goto $path $x $y";
		2686
		2687	# *tag paths override both path and x|y
		2688	if ($path =~ /^\*(.*)$/) {
		2689	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2690	my $ob = $obs[rand @obs];
		2691
		2692	# see if we actually can go there
		2693	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2694	$ob = $obs[rand @obs];
		2695	} else {
		2696	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2697	}
		2698	# else put us there anyways for now #d#
		2699
		2700	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2701	} else {
		2702	($path, $x, $y) = (undef, undef, undef);
		2703	}
		2704	}
		2705
1969	my $map = eval {	2706	my $map = eval {
1970	my $map = cf::map::find $path;	2707	my $map = defined $path ? cf::map::find $path : undef;
1971		2708
1972	if ($map) {	2709	if ($map) {
1973	$map = $map->customise_for ($self);	2710	$map = $map->customise_for ($self);
1974	$map = $check->($map) if $check && $map;	2711	$map = $check->($map) if $check && $map;
1975	} else {	2712	} else {
1976	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2713	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
1977	}	2714	}
1978		2715
1979	$map	2716	$map
1980	};	2717	};
1981		2718
…		…
1986		2723
1987	if ($gen == $self->{_goto_generation}) {	2724	if ($gen == $self->{_goto_generation}) {
1988	delete $self->{_goto_generation};	2725	delete $self->{_goto_generation};
1989	$self->leave_link ($map, $x, $y);	2726	$self->leave_link ($map, $x, $y);
1990	}	2727	}
		2728
		2729	$done->() if $done;
1991	})->prio (1);	2730	})->prio (1);
1992	}	2731	}
1993		2732
1994	=item $player_object->enter_exit ($exit_object)	2733	=item $player_object->enter_exit ($exit_object)
1995		2734
…		…
2015	}	2754	}
2016		2755
2017	sub prepare_random_map {	2756	sub prepare_random_map {
2018	my ($exit) = @_;	2757	my ($exit) = @_;
2019		2758
2020	my $guard = cf::lock_acquire "exit_prepare:$exit";
2021
2022	# all this does is basically replace the /! path by	2759	# all this does is basically replace the /! path by
2023	# a new random map path (?random/...) with a seed	2760	# a new random map path (?random/...) with a seed
2024	# that depends on the exit object	2761	# that depends on the exit object
2025		2762
2026	my $rmp = parse_random_map_params $exit->msg;	2763	my $rmp = parse_random_map_params $exit->msg;
…		…
2028	if ($exit->map) {	2765	if ($exit->map) {
2029	$rmp->{region} = $exit->region->name;	2766	$rmp->{region} = $exit->region->name;
2030	$rmp->{origin_map} = $exit->map->path;	2767	$rmp->{origin_map} = $exit->map->path;
2031	$rmp->{origin_x} = $exit->x;	2768	$rmp->{origin_x} = $exit->x;
2032	$rmp->{origin_y} = $exit->y;	2769	$rmp->{origin_y} = $exit->y;
		2770
		2771	$exit->map->touch;
2033	}	2772	}
2034		2773
2035	$rmp->{random_seed} ||= $exit->random_seed;	2774	$rmp->{random_seed} ||= $exit->random_seed;
2036		2775
2037	my $data = cf::to_json $rmp;	2776	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2038	my $md5 = Digest::MD5::md5_hex $data;	2777	my $md5 = Digest::MD5::md5_hex $data;
2039	my $meta = "$RANDOMDIR/$md5.meta";	2778	my $meta = "$RANDOMDIR/$md5.meta";
2040		2779
2041	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2780	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2042	aio_write $fh, 0, (length $data), $data, 0;	2781	aio_write $fh, 0, (length $data), $data, 0;
2043	undef $fh;	2782	undef $fh;
2044	aio_rename "$meta~", $meta;	2783	aio_rename "$meta~", $meta;
2045		2784
		2785	my $slaying = "?random/$md5";
		2786
		2787	if ($exit->valid) {
2046	$exit->slaying ("?random/$md5");	2788	$exit->slaying ("?random/$md5");
2047	$exit->msg (undef);	2789	$exit->msg (undef);
		2790	}
2048	}	2791	}
2049	}	2792	}
2050		2793
2051	sub cf::object::player::enter_exit {	2794	sub cf::object::player::enter_exit {
2052	my ($self, $exit) = @_;	2795	my ($self, $exit) = @_;
2053		2796
2054	return unless $self->type == cf::PLAYER;	2797	return unless $self->type == cf::PLAYER;
2055		2798
2056	if ($exit->slaying eq "/!") {
2057	#TODO: this should de-fi-ni-te-ly not be a sync-job
2058	# the problem is that $exit might not survive long enough
2059	# so it needs to be done right now, right here
2060	cf::sync_job { prepare_random_map $exit };
2061	}
2062
2063	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2064	my $hp = $exit->stats->hp;
2065	my $sp = $exit->stats->sp;
2066
2067	$self->enter_link;	2799	$self->enter_link;
2068		2800
2069	(async {	2801	(async {
2070	$self->deactivate_recursive; # just to be sure	2802	$Coro::current->{desc} = "enter_exit";
		2803
2071	unless (eval {	2804	unless (eval {
		2805	$self->deactivate_recursive; # just to be sure
		2806
		2807	# random map handling
		2808	{
		2809	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2810
		2811	prepare_random_map $exit
		2812	if $exit->slaying eq "/!";
		2813	}
		2814
		2815	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2816	my $x = $exit->stats->hp;
		2817	my $y = $exit->stats->sp;
		2818
2072	$self->goto ($slaying, $hp, $sp);	2819	$self->goto ($map, $x, $y);
2073		2820
		2821	# if exit is damned, update players death & WoR home-position
		2822	$self->contr->savebed ($map, $x, $y)
		2823	if $exit->flag (cf::FLAG_DAMNED);
		2824
2074	1;	2825	1
2075	}) {	2826	}) {
2076	$self->message ("Something went wrong deep within the crossfire server. "	2827	$self->message ("Something went wrong deep within the deliantra server. "
2077	. "I'll try to bring you back to the map you were before. "	2828	. "I'll try to bring you back to the map you were before. "
2078	. "Please report this to the dungeon master!",	2829	. "Please report this to the dungeon master!",
2079	cf::NDI_UNIQUE | cf::NDI_RED);	2830	cf::NDI_UNIQUE | cf::NDI_RED);
2080		2831
2081	warn "ERROR in enter_exit: $@";	2832	warn "ERROR in enter_exit: $@";
…		…
2100		2851
2101	utf8::encode $text;	2852	utf8::encode $text;
2102	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2853	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2103	}	2854	}
2104		2855
		2856	=item $client->send_big_packet ($pkt)
		2857
		2858	Like C<send_packet>, but tries to compress large packets, and fragments
		2859	them as required.
		2860
		2861	=cut
		2862
		2863	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2864
		2865	sub cf::client::send_big_packet {
		2866	my ($self, $pkt) = @_;
		2867
		2868	# try lzf for large packets
		2869	$pkt = "lzf " . Compress::LZF::compress $pkt
		2870	if 1024 <= length $pkt and $self->{can_lzf};
		2871
		2872	# split very large packets
		2873	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2874	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2875	$pkt = "frag";
		2876	}
		2877
		2878	$self->send_packet ($pkt);
		2879	}
		2880
		2881	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2882
		2883	Send a drawinfo or msg packet to the client, formatting the msg for the
		2884	client if neccessary. C<$type> should be a string identifying the type of
		2885	the message, with C<log> being the default. If C<$color> is negative, suppress
		2886	the message unless the client supports the msg packet.
		2887
		2888	=cut
		2889
		2890	# non-persistent channels (usually the info channel)
		2891	our %CHANNEL = (
		2892	"c/motd" => {
		2893	id => "infobox",
		2894	title => "MOTD",
		2895	reply => undef,
		2896	tooltip => "The message of the day",
		2897	},
		2898	"c/identify" => {
		2899	id => "infobox",
		2900	title => "Identify",
		2901	reply => undef,
		2902	tooltip => "Items recently identified",
		2903	},
		2904	"c/examine" => {
		2905	id => "infobox",
		2906	title => "Examine",
		2907	reply => undef,
		2908	tooltip => "Signs and other items you examined",
		2909	},
		2910	"c/shopinfo" => {
		2911	id => "infobox",
		2912	title => "Shop Info",
		2913	reply => undef,
		2914	tooltip => "What your bargaining skill tells you about the shop",
		2915	},
		2916	"c/book" => {
		2917	id => "infobox",
		2918	title => "Book",
		2919	reply => undef,
		2920	tooltip => "The contents of a note or book",
		2921	},
		2922	"c/lookat" => {
		2923	id => "infobox",
		2924	title => "Look",
		2925	reply => undef,
		2926	tooltip => "What you saw there",
		2927	},
		2928	"c/who" => {
		2929	id => "infobox",
		2930	title => "Players",
		2931	reply => undef,
		2932	tooltip => "Shows players who are currently online",
		2933	},
		2934	"c/body" => {
		2935	id => "infobox",
		2936	title => "Body Parts",
		2937	reply => undef,
		2938	tooltip => "Shows which body parts you posess and are available",
		2939	},
		2940	"c/statistics" => {
		2941	id => "infobox",
		2942	title => "Statistics",
		2943	reply => undef,
		2944	tooltip => "Shows your primary statistics",
		2945	},
		2946	"c/skills" => {
		2947	id => "infobox",
		2948	title => "Skills",
		2949	reply => undef,
		2950	tooltip => "Shows your experience per skill and item power",
		2951	},
		2952	"c/shopitems" => {
		2953	id => "infobox",
		2954	title => "Shop Items",
		2955	reply => undef,
		2956	tooltip => "Shows the items currently for sale in this shop",
		2957	},
		2958	"c/resistances" => {
		2959	id => "infobox",
		2960	title => "Resistances",
		2961	reply => undef,
		2962	tooltip => "Shows your resistances",
		2963	},
		2964	"c/pets" => {
		2965	id => "infobox",
		2966	title => "Pets",
		2967	reply => undef,
		2968	tooltip => "Shows information abotu your pets/a specific pet",
		2969	},
		2970	"c/perceiveself" => {
		2971	id => "infobox",
		2972	title => "Perceive Self",
		2973	reply => undef,
		2974	tooltip => "You gained detailed knowledge about yourself",
		2975	},
		2976	"c/uptime" => {
		2977	id => "infobox",
		2978	title => "Uptime",
		2979	reply => undef,
		2980	tooltip => "How long the server has been running since last restart",
		2981	},
		2982	"c/mapinfo" => {
		2983	id => "infobox",
		2984	title => "Map Info",
		2985	reply => undef,
		2986	tooltip => "Information related to the maps",
		2987	},
		2988	"c/party" => {
		2989	id => "party",
		2990	title => "Party",
		2991	reply => "gsay ",
		2992	tooltip => "Messages and chat related to your party",
		2993	},
		2994	"c/death" => {
		2995	id => "death",
		2996	title => "Death",
		2997	reply => undef,
		2998	tooltip => "Reason for and more info about your most recent death",
		2999	},
		3000	"c/say" => $SAY_CHANNEL,
		3001	"c/chat" => $CHAT_CHANNEL,
		3002	);
		3003
		3004	sub cf::client::send_msg {
		3005	my ($self, $channel, $msg, $color, @extra) = @_;
		3006
		3007	$msg = $self->pl->expand_cfpod ($msg)
		3008	unless $color & cf::NDI_VERBATIM;
		3009
		3010	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3011
		3012	# check predefined channels, for the benefit of C
		3013	if ($CHANNEL{$channel}) {
		3014	$channel = $CHANNEL{$channel};
		3015
		3016	$self->ext_msg (channel_info => $channel);
		3017	$channel = $channel->{id};
		3018
		3019	} elsif (ref $channel) {
		3020	# send meta info to client, if not yet sent
		3021	unless (exists $self->{channel}{$channel->{id}}) {
		3022	$self->{channel}{$channel->{id}} = $channel;
		3023	$self->ext_msg (channel_info => $channel);
		3024	}
		3025
		3026	$channel = $channel->{id};
		3027	}
		3028
		3029	return unless @extra || length $msg;
		3030
		3031	# default colour, mask it out
		3032	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3033	if $color & cf::NDI_DEF;
		3034
		3035	my $pkt = "msg "
		3036	. $self->{json_coder}->encode (
		3037	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3038	);
		3039
		3040	$self->send_big_packet ($pkt);
		3041	}
		3042
2105	=item $client->ext_event ($type, %msg)	3043	=item $client->ext_msg ($type, @msg)
2106		3044
2107	Sends an exti event to the client.	3045	Sends an ext event to the client.
2108		3046
2109	=cut	3047	=cut
2110		3048
2111	sub cf::client::ext_event($$%) {	3049	sub cf::client::ext_msg($$@) {
2112	my ($self, $type, %msg) = @_;	3050	my ($self, $type, @msg) = @_;
2113		3051
		3052	if ($self->extcmd == 2) {
		3053	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3054	} elsif ($self->extcmd == 1) { # TODO: remove
2114	$msg{msgtype} = "event_$type";	3055	push @msg, msgtype => "event_$type";
2115	$self->send_packet ("ext " . cf::to_json \%msg);	3056	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3057	}
		3058	}
		3059
		3060	=item $client->ext_reply ($msgid, @msg)
		3061
		3062	Sends an ext reply to the client.
		3063
		3064	=cut
		3065
		3066	sub cf::client::ext_reply($$@) {
		3067	my ($self, $id, @msg) = @_;
		3068
		3069	if ($self->extcmd == 2) {
		3070	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3071	} elsif ($self->extcmd == 1) {
		3072	#TODO: version 1, remove
		3073	unshift @msg, msgtype => "reply", msgid => $id;
		3074	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3075	}
2116	}	3076	}
2117		3077
2118	=item $success = $client->query ($flags, "text", \&cb)	3078	=item $success = $client->query ($flags, "text", \&cb)
2119		3079
2120	Queues a query to the client, calling the given callback with	3080	Queues a query to the client, calling the given callback with
2121	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3081	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2122	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3082	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2123		3083
2124	Queries can fail, so check the return code. Or don't, as queries will become	3084	Queries can fail, so check the return code. Or don't, as queries will
2125	reliable at some point in the future.	3085	become reliable at some point in the future.
2126		3086
2127	=cut	3087	=cut
2128		3088
2129	sub cf::client::query {	3089	sub cf::client::query {
2130	my ($self, $flags, $text, $cb) = @_;	3090	my ($self, $flags, $text, $cb) = @_;
…		…
2138	utf8::encode $text;	3098	utf8::encode $text;
2139	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3099	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2140		3100
2141	$self->send_packet ($self->{query_queue}[0][0])	3101	$self->send_packet ($self->{query_queue}[0][0])
2142	if @{ $self->{query_queue} } == 1;	3102	if @{ $self->{query_queue} } == 1;
		3103
		3104	1
2143	}	3105	}
2144		3106
2145	cf::client->attach (	3107	cf::client->attach (
		3108	on_connect => sub {
		3109	my ($ns) = @_;
		3110
		3111	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3112	},
2146	on_reply => sub {	3113	on_reply => sub {
2147	my ($ns, $msg) = @_;	3114	my ($ns, $msg) = @_;
2148		3115
2149	# this weird shuffling is so that direct followup queries	3116	# this weird shuffling is so that direct followup queries
2150	# get handled first	3117	# get handled first
…		…
2162	} else {	3129	} else {
2163	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3130	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2164	}	3131	}
2165	}	3132	}
2166	},	3133	},
		3134	on_exticmd => sub {
		3135	my ($ns, $buf) = @_;
		3136
		3137	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3138
		3139	if (ref $msg) {
		3140	my ($type, $reply, @payload) =
		3141	"ARRAY" eq ref $msg
		3142	? @$msg
		3143	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3144
		3145	my @reply;
		3146
		3147	if (my $cb = $EXTICMD{$type}) {
		3148	@reply = $cb->($ns, @payload);
		3149	}
		3150
		3151	$ns->ext_reply ($reply, @reply)
		3152	if $reply;
		3153
		3154	} else {
		3155	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3156	}
		3157
		3158	cf::override;
		3159	},
2167	);	3160	);
2168		3161
2169	=item $client->async (\&cb)	3162	=item $client->async (\&cb)
2170		3163
2171	Create a new coroutine, running the specified callback. The coroutine will	3164	Create a new coroutine, running the specified callback. The coroutine will
…		…
2187		3180
2188	$coro	3181	$coro
2189	}	3182	}
2190		3183
2191	cf::client->attach (	3184	cf::client->attach (
2192	on_destroy => sub {	3185	on_client_destroy => sub {
2193	my ($ns) = @_;	3186	my ($ns) = @_;
2194		3187
2195	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3188	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2196	},	3189	},
2197	);	3190	);
…		…
2212	our $safe = new Safe "safe";	3205	our $safe = new Safe "safe";
2213	our $safe_hole = new Safe::Hole;	3206	our $safe_hole = new Safe::Hole;
2214		3207
2215	$SIG{FPE} = 'IGNORE';	3208	$SIG{FPE} = 'IGNORE';
2216		3209
2217	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3210	$safe->permit_only (Opcode::opset qw(
		3211	:base_core :base_mem :base_orig :base_math :base_loop
		3212	grepstart grepwhile mapstart mapwhile
		3213	sort time
		3214	));
2218		3215
2219	# here we export the classes and methods available to script code	3216	# here we export the classes and methods available to script code
2220		3217
2221	=pod	3218	=pod
2222		3219
2223	The following functions and methods are available within a safe environment:	3220	The following functions and methods are available within a safe environment:
2224		3221
2225	cf::object contr pay_amount pay_player map	3222	cf::object
		3223	contr pay_amount pay_player map x y force_find force_add destroy
		3224	insert remove name archname title slaying race decrease split
		3225	value
		3226
2226	cf::object::player player	3227	cf::object::player
2227	cf::player peaceful	3228	player
2228	cf::map trigger	3229
		3230	cf::player
		3231	peaceful
		3232
		3233	cf::map
		3234	trigger
2229		3235
2230	=cut	3236	=cut
2231		3237
2232	for (	3238	for (
2233	["cf::object" => qw(contr pay_amount pay_player map)],	3239	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3240	insert remove inv nrof name archname title slaying race
		3241	decrease split destroy change_exp value msg lore send_msg)],
2234	["cf::object::player" => qw(player)],	3242	["cf::object::player" => qw(player)],
2235	["cf::player" => qw(peaceful)],	3243	["cf::player" => qw(peaceful send_msg)],
2236	["cf::map" => qw(trigger)],	3244	["cf::map" => qw(trigger)],
2237	) {	3245	) {
2238	no strict 'refs';	3246	no strict 'refs';
2239	my ($pkg, @funs) = @$_;	3247	my ($pkg, @funs) = @$_;
2240	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3248	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2258		3266
2259	my $qcode = $code;	3267	my $qcode = $code;
2260	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3268	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2261	$qcode =~ s/\n/\\n/g;	3269	$qcode =~ s/\n/\\n/g;
2262		3270
		3271	%vars = (_dummy => 0) unless %vars;
		3272
		3273	my @res;
2263	local $_;	3274	local $_;
2264	local @safe::cf::_safe_eval_args = values %vars;
2265		3275
2266	my $eval =	3276	my $eval =
2267	"do {\n"	3277	"do {\n"
2268	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3278	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2269	. "#line 0 \"{$qcode}\"\n"	3279	. "#line 0 \"{$qcode}\"\n"
2270	. $code	3280	. $code
2271	. "\n}"	3281	. "\n}"
2272	;	3282	;
2273		3283
		3284	if ($CFG{safe_eval}) {
2274	sub_generation_inc;	3285	sub_generation_inc;
		3286	local @safe::cf::_safe_eval_args = values %vars;
2275	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3287	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2276	sub_generation_inc;	3288	sub_generation_inc;
		3289	} else {
		3290	local @cf::_safe_eval_args = values %vars;
		3291	@res = wantarray ? eval eval : scalar eval $eval;
		3292	}
2277		3293
2278	if ($@) {	3294	if ($@) {
2279	warn "$@";	3295	warn "$@";
2280	warn "while executing safe code '$code'\n";	3296	warn "while executing safe code '$code'\n";
2281	warn "with arguments " . (join " ", %vars) . "\n";	3297	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2300	=cut	3316	=cut
2301		3317
2302	sub register_script_function {	3318	sub register_script_function {
2303	my ($fun, $cb) = @_;	3319	my ($fun, $cb) = @_;
2304		3320
2305	no strict 'refs';	3321	$fun = "safe::$fun" if $CFG{safe_eval};
2306	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3322	*$fun = $safe_hole->wrap ($cb);
2307	}	3323	}
2308		3324
2309	=back	3325	=back
2310		3326
2311	=cut	3327	=cut
2312
2313	#############################################################################
2314
2315	=head2 EXTENSION DATABASE SUPPORT
2316
2317	Crossfire maintains a very simple database for extension use. It can
2318	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2319	convert to/from binary).
2320
2321	The parameter C<$family> should best start with the name of the extension
2322	using it, it should be unique.
2323
2324	=over 4
2325
2326	=item $value = cf::db_get $family => $key
2327
2328	Returns a single value from the database.
2329
2330	=item cf::db_put $family => $key => $value
2331
2332	Stores the given C<$value> in the family.
2333
2334	=cut
2335
2336	our $DB;
2337
2338	sub db_init {
2339	unless ($DB) {
2340	$DB = BDB::db_create $DB_ENV;
2341
2342	cf::sync_job {
2343	eval {
2344	$DB->set_flags (BDB::CHKSUM);
2345
2346	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2347	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2348	cf::cleanup "db_open(db): $!" if $!;
2349	};
2350	cf::cleanup "db_open(db): $@" if $@;
2351	};
2352	}
2353	}
2354
2355	sub db_get($$) {
2356	my $key = "$_[0]/$_[1]";
2357
2358	cf::sync_job {
2359	BDB::db_get $DB, undef, $key, my $data;
2360
2361	$! ? ()
2362	: $data
2363	}
2364	}
2365
2366	sub db_put($$$) {
2367	BDB::dbreq_pri 4;
2368	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2369	}
2370
2371	=item cf::cache $id => [$paths...], $processversion => $process
2372
2373	Generic caching function that returns the value of the resource $id,
2374	caching and regenerating as required.
2375
2376	This function can block.
2377
2378	=cut
2379
2380	sub cache {
2381	my ($id, $src, $processversion, $process) = @_;
2382
2383	my $meta =
2384	join "\x00",
2385	$processversion,
2386	map {
2387	aio_stat $_
2388	and Carp::croak "$_: $!";
2389
2390	($_, (stat _)[7,9])
2391	} @$src;
2392
2393	my $dbmeta = db_get cache => "$id/meta";
2394	if ($dbmeta ne $meta) {
2395	# changed, we may need to process
2396
2397	my @data;
2398	my $md5;
2399
2400	for (0 .. $#$src) {
2401	0 <= aio_load $src->[$_], $data[$_]
2402	or Carp::croak "$src->[$_]: $!";
2403	}
2404
2405	# if processing is expensive, check
2406	# checksum first
2407	if (1) {
2408	$md5 =
2409	join "\x00",
2410	$processversion,
2411	map {
2412	Coro::cede;
2413	($src->[$_], Digest::MD5::md5_hex $data[$_])
2414	} 0.. $#$src;
2415
2416
2417	my $dbmd5 = db_get cache => "$id/md5";
2418	if ($dbmd5 eq $md5) {
2419	db_put cache => "$id/meta", $meta;
2420
2421	return db_get cache => "$id/data";
2422	}
2423	}
2424
2425	my $t1 = Time::HiRes::time;
2426	my $data = $process->(\@data);
2427	my $t2 = Time::HiRes::time;
2428
2429	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2430
2431	db_put cache => "$id/data", $data;
2432	db_put cache => "$id/md5" , $md5;
2433	db_put cache => "$id/meta", $meta;
2434
2435	return $data;
2436	}
2437
2438	db_get cache => "$id/data"
2439	}
2440
2441	=item fork_call { }, $args
2442
2443	Executes the given code block with the given arguments in a seperate
2444	process, returning the results. Everything must be serialisable with
2445	Coro::Storable. May, of course, block. Note that the executed sub may
2446	never block itself or use any form of Event handling.
2447
2448	=cut
2449
2450	sub fork_call(&@) {
2451	my ($cb, @args) = @_;
2452
2453	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2454	# or die "socketpair: $!";
2455	pipe my $fh1, my $fh2
2456	or die "pipe: $!";
2457
2458	if (my $pid = fork) {
2459	close $fh2;
2460
2461	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2462	$res = Coro::Storable::thaw $res;
2463
2464	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2465
2466	die $$res unless "ARRAY" eq ref $res;
2467
2468	return wantarray ? @$res : $res->[-1];
2469	} else {
2470	reset_signals;
2471	local $SIG{__WARN__};
2472	local $SIG{__DIE__};
2473	eval {
2474	close $fh1;
2475
2476	my @res = eval { $cb->(@args) };
2477	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2478	};
2479
2480	warn $@ if $@;
2481	_exit 0;
2482	}
2483	}
2484		3328
2485	#############################################################################	3329	#############################################################################
2486	# the server's init and main functions	3330	# the server's init and main functions
2487		3331
2488	sub load_facedata($) {	3332	sub load_facedata($) {
2489	my ($path) = @_;	3333	my ($path) = @_;
		3334
		3335	# HACK to clear player env face cache, we need some signal framework
		3336	# for this (global event?)
		3337	%ext::player_env::MUSIC_FACE_CACHE = ();
		3338
		3339	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2490		3340
2491	warn "loading facedata from $path\n";	3341	warn "loading facedata from $path\n";
2492		3342
2493	my $facedata;	3343	my $facedata;
2494	0 < aio_load $path, $facedata	3344	0 < aio_load $path, $facedata
…		…
2497	$facedata = Coro::Storable::thaw $facedata;	3347	$facedata = Coro::Storable::thaw $facedata;
2498		3348
2499	$facedata->{version} == 2	3349	$facedata->{version} == 2
2500	or cf::cleanup "$path: version mismatch, cannot proceed.";	3350	or cf::cleanup "$path: version mismatch, cannot proceed.";
2501		3351
		3352	# patch in the exptable
		3353	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3354	$facedata->{resource}{"res/exp_table"} = {
		3355	type => FT_RSRC,
		3356	data => $exp_table,
		3357	hash => (Digest::MD5::md5 $exp_table),
		3358	};
		3359	cf::cede_to_tick;
		3360
2502	{	3361	{
2503	my $faces = $facedata->{faceinfo};	3362	my $faces = $facedata->{faceinfo};
2504		3363
2505	while (my ($face, $info) = each %$faces) {	3364	while (my ($face, $info) = each %$faces) {
2506	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3365	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3366
2507	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3367	cf::face::set_visibility $idx, $info->{visibility};
		3368	cf::face::set_magicmap $idx, $info->{magicmap};
2508	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3369	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2509	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3370	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2510	Coro::cede;	3371
		3372	cf::cede_to_tick;
2511	}	3373	}
2512		3374
2513	while (my ($face, $info) = each %$faces) {	3375	while (my ($face, $info) = each %$faces) {
2514	next unless $info->{smooth};	3376	next unless $info->{smooth};
		3377
2515	my $idx = cf::face::find $face	3378	my $idx = cf::face::find $face
2516	or next;	3379	or next;
		3380
2517	if (my $smooth = cf::face::find $info->{smooth}) {	3381	if (my $smooth = cf::face::find $info->{smooth}) {
		3382	cf::face::set_smooth $idx, $smooth;
2518	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3383	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2519	} else {	3384	} else {
2520	warn "smooth face '$info->{smooth}' not found for face '$face'";	3385	warn "smooth face '$info->{smooth}' not found for face '$face'";
2521	}	3386	}
2522	Coro::cede;	3387
		3388	cf::cede_to_tick;
2523	}	3389	}
2524	}	3390	}
2525		3391
2526	{	3392	{
2527	my $anims = $facedata->{animinfo};	3393	my $anims = $facedata->{animinfo};
2528		3394
2529	while (my ($anim, $info) = each %$anims) {	3395	while (my ($anim, $info) = each %$anims) {
2530	cf::anim::set $anim, $info->{frames}, $info->{facings};	3396	cf::anim::set $anim, $info->{frames}, $info->{facings};
2531	Coro::cede;	3397	cf::cede_to_tick;
2532	}	3398	}
2533		3399
2534	cf::anim::invalidate_all; # d'oh	3400	cf::anim::invalidate_all; # d'oh
2535	}	3401	}
2536		3402
		3403	{
		3404	my $res = $facedata->{resource};
		3405
		3406	while (my ($name, $info) = each %$res) {
		3407	if (defined $info->{type}) {
		3408	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3409
		3410	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3411	cf::face::set_type $idx, $info->{type};
		3412	} else {
		3413	$RESOURCE{$name} = $info;
		3414	}
		3415
		3416	cf::cede_to_tick;
		3417	}
		3418	}
		3419
		3420	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3421
2537	1	3422	1
2538	}	3423	}
2539		3424
		3425	cf::global->attach (on_resource_update => sub {
		3426	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3427	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3428
		3429	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3430	my $sound = $soundconf->{compat}[$_]
		3431	or next;
		3432
		3433	my $face = cf::face::find "sound/$sound->[1]";
		3434	cf::sound::set $sound->[0] => $face;
		3435	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3436	}
		3437
		3438	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3439	my $face = cf::face::find "sound/$v";
		3440	cf::sound::set $k => $face;
		3441	}
		3442	}
		3443	});
		3444
		3445	register_exticmd fx_want => sub {
		3446	my ($ns, $want) = @_;
		3447
		3448	while (my ($k, $v) = each %$want) {
		3449	$ns->fx_want ($k, $v);
		3450	}
		3451	};
		3452
		3453	sub load_resource_file($) {
		3454	my $guard = lock_acquire "load_resource_file";
		3455
		3456	my $status = load_resource_file_ $_[0];
		3457	get_slot 0.1, 100;
		3458	cf::arch::commit_load;
		3459
		3460	$status
		3461	}
		3462
2540	sub reload_regions {	3463	sub reload_regions {
		3464	# HACK to clear player env face cache, we need some signal framework
		3465	# for this (global event?)
		3466	%ext::player_env::MUSIC_FACE_CACHE = ();
		3467
2541	load_resource_file "$MAPDIR/regions"	3468	load_resource_file "$MAPDIR/regions"
2542	or die "unable to load regions file\n";	3469	or die "unable to load regions file\n";
		3470
		3471	for (cf::region::list) {
		3472	$_->{match} = qr/$_->{match}/
		3473	if exists $_->{match};
		3474	}
2543	}	3475	}
2544		3476
2545	sub reload_facedata {	3477	sub reload_facedata {
2546	load_facedata "$DATADIR/facedata"	3478	load_facedata "$DATADIR/facedata"
2547	or die "unable to load facedata\n";	3479	or die "unable to load facedata\n";
…		…
2558	}	3490	}
2559		3491
2560	sub reload_resources {	3492	sub reload_resources {
2561	warn "reloading resource files...\n";	3493	warn "reloading resource files...\n";
2562		3494
		3495	reload_facedata;
		3496	reload_archetypes;
2563	reload_regions;	3497	reload_regions;
2564	reload_facedata;
2565	#reload_archetypes;#d#
2566	reload_archetypes;
2567	reload_treasures;	3498	reload_treasures;
2568		3499
2569	warn "finished reloading resource files\n";	3500	warn "finished reloading resource files\n";
2570	}	3501	}
2571		3502
2572	sub init {	3503	sub reload_config {
2573	reload_resources;	3504	warn "reloading config file...\n";
2574	}
2575		3505
2576	sub cfg_load {
2577	open my $fh, "<:utf8", "$CONFDIR/config"	3506	open my $fh, "<:utf8", "$CONFDIR/config"
2578	or return;	3507	or return;
2579		3508
2580	local $/;	3509	local $/;
2581	*CFG = YAML::Syck::Load <$fh>;	3510	*CFG = YAML::XS::Load scalar <$fh>;
2582		3511
2583	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3512	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2584		3513
2585	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3514	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2586	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3515	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2590	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3519	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2591	and die "WARNING: m(un)lockall failed: $!\n";	3520	and die "WARNING: m(un)lockall failed: $!\n";
2592	};	3521	};
2593	warn $@ if $@;	3522	warn $@ if $@;
2594	}	3523	}
		3524
		3525	warn "finished reloading resource files\n";
		3526	}
		3527
		3528	sub pidfile() {
		3529	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3530	or die "$PIDFILE: $!";
		3531	flock $fh, &Fcntl::LOCK_EX
		3532	or die "$PIDFILE: flock: $!";
		3533	$fh
		3534	}
		3535
		3536	# make sure only one server instance is running at any one time
		3537	sub atomic {
		3538	my $fh = pidfile;
		3539
		3540	my $pid = <$fh>;
		3541	kill 9, $pid if $pid > 0;
		3542
		3543	seek $fh, 0, 0;
		3544	print $fh $$;
		3545	}
		3546
		3547	sub main_loop {
		3548	warn "EV::loop starting\n";
		3549	if (1) {
		3550	EV::loop;
		3551	}
		3552	warn "EV::loop returned\n";
		3553	goto &main_loop unless $REALLY_UNLOOP;
2595	}	3554	}
2596		3555
2597	sub main {	3556	sub main {
		3557	cf::init_globals; # initialise logging
		3558
		3559	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3560	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3561	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3562	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3563
		3564	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3565
2598	# we must not ever block the main coroutine	3566	# we must not ever block the main coroutine
2599	local $Coro::idle = sub {	3567	local $Coro::idle = sub {
2600	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3568	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2601	(async {	3569	(async {
2602	Event::one_event;	3570	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3571	EV::loop EV::LOOP_ONESHOT;
2603	})->prio (Coro::PRIO_MAX);	3572	})->prio (Coro::PRIO_MAX);
2604	};	3573	};
2605		3574
2606	cfg_load;	3575	evthread_start IO::AIO::poll_fileno;
		3576
		3577	cf::sync_job {
		3578	cf::init_experience;
		3579	cf::init_anim;
		3580	cf::init_attackmess;
		3581	cf::init_dynamic;
		3582
		3583	cf::load_settings;
		3584	cf::load_materials;
		3585
		3586	reload_resources;
		3587	reload_config;
2607	db_init;	3588	db_init;
		3589
		3590	cf::init_uuid;
		3591	cf::init_signals;
		3592	cf::init_skills;
		3593
		3594	cf::init_beforeplay;
		3595
		3596	atomic;
		3597
2608	load_extensions;	3598	load_extensions;
2609		3599
2610	$TICK_WATCHER->start;	3600	utime time, time, $RUNTIMEFILE;
2611	Event::loop;	3601
		3602	# no (long-running) fork's whatsoever before this point(!)
		3603	use POSIX ();
		3604	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3605
		3606	(pop @POST_INIT)->(0) while @POST_INIT;
		3607	};
		3608
		3609	cf::object::thawer::errors_are_fatal 0;
		3610	warn "parse errors in files are no longer fatal from this point on.\n";
		3611
		3612	main_loop;
2612	}	3613	}
2613		3614
2614	#############################################################################	3615	#############################################################################
2615	# initialisation and cleanup	3616	# initialisation and cleanup
2616		3617
2617	# install some emergency cleanup handlers	3618	# install some emergency cleanup handlers
2618	BEGIN {	3619	BEGIN {
		3620	our %SIGWATCHER = ();
2619	for my $signal (qw(INT HUP TERM)) {	3621	for my $signal (qw(INT HUP TERM)) {
2620	Event->signal (	3622	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2621	reentrant => 0,
2622	data => WF_AUTOCANCEL,
2623	signal => $signal,
2624	prio => 0,
2625	cb => sub {
2626	cf::cleanup "SIG$signal";	3623	cf::cleanup "SIG$signal";
2627	},
2628	);	3624	};
		3625	}
		3626	}
		3627
		3628	sub write_runtime_sync {
		3629	my $t0 = AE::time;
		3630
		3631	# first touch the runtime file to show we are still running:
		3632	# the fsync below can take a very very long time.
		3633
		3634	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3635
		3636	my $guard = cf::lock_acquire "write_runtime";
		3637
		3638	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3639	or return;
		3640
		3641	my $value = $cf::RUNTIME + 90 + 10;
		3642	# 10 is the runtime save interval, for a monotonic clock
		3643	# 60 allows for the watchdog to kill the server.
		3644
		3645	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3646	and return;
		3647
		3648	# always fsync - this file is important
		3649	aio_fsync $fh
		3650	and return;
		3651
		3652	# touch it again to show we are up-to-date
		3653	aio_utime $fh, undef, undef;
		3654
		3655	close $fh
		3656	or return;
		3657
		3658	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3659	and return;
		3660
		3661	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3662
2629	}	3663	1
		3664	}
		3665
		3666	our $uuid_lock;
		3667	our $uuid_skip;
		3668
		3669	sub write_uuid_sync($) {
		3670	$uuid_skip ||= $_[0];
		3671
		3672	return if $uuid_lock;
		3673	local $uuid_lock = 1;
		3674
		3675	my $uuid = "$LOCALDIR/uuid";
		3676
		3677	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3678	or return;
		3679
		3680	my $value = uuid_seq uuid_cur;
		3681
		3682	unless ($value) {
		3683	warn "cowardly refusing to write zero uuid value!\n";
		3684	return;
		3685	}
		3686
		3687	my $value = uuid_str $value + $uuid_skip;
		3688	$uuid_skip = 0;
		3689
		3690	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3691	and return;
		3692
		3693	# always fsync - this file is important
		3694	aio_fsync $fh
		3695	and return;
		3696
		3697	close $fh
		3698	or return;
		3699
		3700	aio_rename "$uuid~", $uuid
		3701	and return;
		3702
		3703	warn "uuid file written ($value).\n";
		3704
		3705	1
		3706
		3707	}
		3708
		3709	sub write_uuid($$) {
		3710	my ($skip, $sync) = @_;
		3711
		3712	$sync ? write_uuid_sync $skip
		3713	: async { write_uuid_sync $skip };
2630	}	3714	}
2631		3715
2632	sub emergency_save() {	3716	sub emergency_save() {
2633	my $freeze_guard = cf::freeze_mainloop;	3717	my $freeze_guard = cf::freeze_mainloop;
2634		3718
2635	warn "enter emergency perl save\n";	3719	warn "emergency_perl_save: enter\n";
2636		3720
2637	cf::sync_job {	3721	cf::sync_job {
		3722	# this is a trade-off: we want to be very quick here, so
		3723	# save all maps without fsync, and later call a global sync
		3724	# (which in turn might be very very slow)
		3725	local $USE_FSYNC = 0;
		3726
2638	# use a peculiar iteration method to avoid tripping on perl	3727	# use a peculiar iteration method to avoid tripping on perl
2639	# refcount bugs in for. also avoids problems with players	3728	# refcount bugs in for. also avoids problems with players
2640	# and maps saved/destroyed asynchronously.	3729	# and maps saved/destroyed asynchronously.
2641	warn "begin emergency player save\n";	3730	warn "emergency_perl_save: begin player save\n";
2642	for my $login (keys %cf::PLAYER) {	3731	for my $login (keys %cf::PLAYER) {
2643	my $pl = $cf::PLAYER{$login} or next;	3732	my $pl = $cf::PLAYER{$login} or next;
2644	$pl->valid or next;	3733	$pl->valid or next;
		3734	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2645	$pl->save;	3735	$pl->save;
2646	}	3736	}
2647	warn "end emergency player save\n";	3737	warn "emergency_perl_save: end player save\n";
2648		3738
2649	warn "begin emergency map save\n";	3739	warn "emergency_perl_save: begin map save\n";
2650	for my $path (keys %cf::MAP) {	3740	for my $path (keys %cf::MAP) {
2651	my $map = $cf::MAP{$path} or next;	3741	my $map = $cf::MAP{$path} or next;
2652	$map->valid or next;	3742	$map->valid or next;
2653	$map->save;	3743	$map->save;
2654	}	3744	}
2655	warn "end emergency map save\n";	3745	warn "emergency_perl_save: end map save\n";
2656		3746
2657	warn "begin emergency database checkpoint\n";	3747	warn "emergency_perl_save: begin database checkpoint\n";
2658	BDB::db_env_txn_checkpoint $DB_ENV;	3748	BDB::db_env_txn_checkpoint $DB_ENV;
2659	warn "end emergency database checkpoint\n";	3749	warn "emergency_perl_save: end database checkpoint\n";
		3750
		3751	warn "emergency_perl_save: begin write uuid\n";
		3752	write_uuid_sync 1;
		3753	warn "emergency_perl_save: end write uuid\n";
2660	};	3754	};
2661		3755
		3756	warn "emergency_perl_save: starting sync()\n";
		3757	IO::AIO::aio_sync sub {
		3758	warn "emergency_perl_save: finished sync()\n";
		3759	};
		3760
2662	warn "leave emergency perl save\n";	3761	warn "emergency_perl_save: leave\n";
2663	}	3762	}
2664		3763
2665	sub post_cleanup {	3764	sub post_cleanup {
2666	my ($make_core) = @_;	3765	my ($make_core) = @_;
2667		3766
2668	warn Carp::longmess "post_cleanup backtrace"	3767	warn Carp::longmess "post_cleanup backtrace"
2669	if $make_core;	3768	if $make_core;
		3769
		3770	my $fh = pidfile;
		3771	unlink $PIDFILE if <$fh> == $$;
		3772	}
		3773
		3774	# a safer delete_package, copied from Symbol
		3775	sub clear_package($) {
		3776	my $pkg = shift;
		3777
		3778	# expand to full symbol table name if needed
		3779	unless ($pkg =~ /^main::.*::$/) {
		3780	$pkg = "main$pkg" if $pkg =~ /^::/;
		3781	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3782	$pkg .= '::' unless $pkg =~ /::$/;
		3783	}
		3784
		3785	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3786	my $stem_symtab = *{$stem}{HASH};
		3787
		3788	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3789	or return;
		3790
		3791	# clear all symbols
		3792	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3793	for my $name (keys %$leaf_symtab) {
		3794	_gv_clear *{"$pkg$name"};
		3795	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3796	}
2670	}	3797	}
2671		3798
2672	sub do_reload_perl() {	3799	sub do_reload_perl() {
2673	# can/must only be called in main	3800	# can/must only be called in main
2674	if ($Coro::current != $Coro::main) {	3801	if (in_main) {
2675	warn "can only reload from main coroutine";	3802	warn "can only reload from main coroutine";
2676	return;	3803	return;
2677	}	3804	}
2678		3805
		3806	return if $RELOAD++;
		3807
		3808	my $t1 = AE::time;
		3809
		3810	while ($RELOAD) {
2679	warn "reloading...";	3811	warn "reloading...";
2680		3812
2681	warn "entering sync_job";	3813	warn "entering sync_job";
2682		3814
2683	cf::sync_job {	3815	cf::sync_job {
2684	cf::write_runtime; # external watchdog should not bark	3816	cf::write_runtime_sync; # external watchdog should not bark
2685	cf::emergency_save;	3817	cf::emergency_save;
2686	cf::write_runtime; # external watchdog should not bark	3818	cf::write_runtime_sync; # external watchdog should not bark
2687		3819
2688	warn "syncing database to disk";	3820	warn "syncing database to disk";
2689	BDB::db_env_txn_checkpoint $DB_ENV;	3821	BDB::db_env_txn_checkpoint $DB_ENV;
2690		3822
2691	# if anything goes wrong in here, we should simply crash as we already saved	3823	# if anything goes wrong in here, we should simply crash as we already saved
2692		3824
2693	warn "cancelling all WF_AUTOCANCEL watchers";
2694	for (Event::all_watchers) {
2695	$_->cancel if $_->data & WF_AUTOCANCEL;
2696	}
2697
2698	warn "flushing outstanding aio requests";	3825	warn "flushing outstanding aio requests";
2699	for (;;) {
2700	BDB::flush;
2701	IO::AIO::flush;
2702	Coro::cede;
2703	last unless IO::AIO::nreqs || BDB::nreqs;	3826	while (IO::AIO::nreqs || BDB::nreqs) {
2704	warn "iterate...";	3827	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2705	}
2706
2707	++$RELOAD;
2708
2709	warn "cancelling all extension coros";
2710	$_->cancel for values %EXT_CORO;
2711	%EXT_CORO = ();
2712
2713	warn "removing commands";
2714	%COMMAND = ();
2715
2716	warn "removing ext commands";
2717	%EXTCMD = ();
2718
2719	warn "unloading/nuking all extensions";
2720	for my $pkg (@EXTS) {
2721	warn "... unloading $pkg";
2722
2723	if (my $cb = $pkg->can ("unload")) {
2724	eval {
2725	$cb->($pkg);
2726	1
2727	} or warn "$pkg unloaded, but with errors: $@";
2728	}	3828	}
2729		3829
2730	warn "... nuking $pkg";	3830	warn "cancelling all extension coros";
2731	Symbol::delete_package $pkg;	3831	$_->cancel for values %EXT_CORO;
2732	}	3832	%EXT_CORO = ();
2733		3833
2734	warn "unloading all perl modules loaded from $LIBDIR";	3834	warn "removing commands";
2735	while (my ($k, $v) = each %INC) {	3835	%COMMAND = ();
2736	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2737		3836
		3837	warn "removing ext/exti commands";
		3838	%EXTCMD = ();
		3839	%EXTICMD = ();
		3840
		3841	warn "unloading/nuking all extensions";
		3842	for my $pkg (@EXTS) {
2738	warn "... unloading $k";	3843	warn "... unloading $pkg";
2739	delete $INC{$k};
2740		3844
2741	$k =~ s/\.pm$//;
2742	$k =~ s/\//::/g;
2743
2744	if (my $cb = $k->can ("unload_module")) {	3845	if (my $cb = $pkg->can ("unload")) {
		3846	eval {
2745	$cb->();	3847	$cb->($pkg);
		3848	1
		3849	} or warn "$pkg unloaded, but with errors: $@";
		3850	}
		3851
		3852	warn "... clearing $pkg";
		3853	clear_package $pkg;
2746	}	3854	}
2747		3855
2748	Symbol::delete_package $k;	3856	warn "unloading all perl modules loaded from $LIBDIR";
		3857	while (my ($k, $v) = each %INC) {
		3858	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3859
		3860	warn "... unloading $k";
		3861	delete $INC{$k};
		3862
		3863	$k =~ s/\.pm$//;
		3864	$k =~ s/\//::/g;
		3865
		3866	if (my $cb = $k->can ("unload_module")) {
		3867	$cb->();
		3868	}
		3869
		3870	clear_package $k;
2749	}	3871	}
2750		3872
2751	warn "getting rid of safe::, as good as possible";	3873	warn "getting rid of safe::, as good as possible";
2752	Symbol::delete_package "safe::$_"	3874	clear_package "safe::$_"
2753	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3875	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2754		3876
2755	warn "unloading cf.pm \"a bit\"";	3877	warn "unloading cf.pm \"a bit\"";
2756	delete $INC{"cf.pm"};	3878	delete $INC{"cf.pm"};
2757	delete $INC{"cf/pod.pm"};	3879	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2758		3880
2759	# don't, removes xs symbols, too,	3881	# don't, removes xs symbols, too,
2760	# and global variables created in xs	3882	# and global variables created in xs
2761	#Symbol::delete_package __PACKAGE__;	3883	#clear_package __PACKAGE__;
2762		3884
2763	warn "unload completed, starting to reload now";	3885	warn "unload completed, starting to reload now";
2764		3886
2765	warn "reloading cf.pm";	3887	warn "reloading cf.pm";
2766	require cf;	3888	require cf;
2767	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3889	cf::_connect_to_perl_1;
2768		3890
2769	warn "loading config and database again";	3891	warn "loading config and database again";
2770	cf::cfg_load;	3892	cf::reload_config;
2771		3893
2772	warn "loading extensions";	3894	warn "loading extensions";
2773	cf::load_extensions;	3895	cf::load_extensions;
2774		3896
		3897	if ($REATTACH_ON_RELOAD) {
2775	warn "reattaching attachments to objects/players";	3898	warn "reattaching attachments to objects/players";
2776	_global_reattach; # objects, sockets	3899	_global_reattach; # objects, sockets
2777	warn "reattaching attachments to maps";	3900	warn "reattaching attachments to maps";
2778	reattach $_ for values %MAP;	3901	reattach $_ for values %MAP;
2779	warn "reattaching attachments to players";	3902	warn "reattaching attachments to players";
2780	reattach $_ for values %PLAYER;	3903	reattach $_ for values %PLAYER;
		3904	}
2781		3905
		3906	warn "running post_init jobs";
		3907	(pop @POST_INIT)->(1) while @POST_INIT;
		3908
2782	warn "leaving sync_job";	3909	warn "leaving sync_job";
2783		3910
2784	1	3911	1
2785	} or do {	3912	} or do {
2786	warn $@;	3913	warn $@;
2787	warn "error while reloading, exiting.";	3914	cf::cleanup "error while reloading, exiting.";
2788	exit 1;
2789	};	3915	};
2790		3916
2791	warn "reloaded";	3917	warn "reloaded";
		3918	--$RELOAD;
		3919	}
		3920
		3921	$t1 = AE::time - $t1;
		3922	warn "reload completed in ${t1}s\n";
2792	};	3923	};
2793		3924
2794	our $RELOAD_WATCHER; # used only during reload	3925	our $RELOAD_WATCHER; # used only during reload
2795		3926
2796	sub reload_perl() {	3927	sub reload_perl() {
2797	# doing reload synchronously and two reloads happen back-to-back,	3928	# doing reload synchronously and two reloads happen back-to-back,
2798	# coro crashes during coro_state_free->destroy here.	3929	# coro crashes during coro_state_free->destroy here.
2799		3930
2800	$RELOAD_WATCHER ||= Event->timer (	3931	$RELOAD_WATCHER ||= cf::async {
2801	reentrant => 0,	3932	Coro::AIO::aio_wait cache_extensions;
2802	after => 0,	3933
2803	data => WF_AUTOCANCEL,	3934	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
2804	cb => sub {
2805	do_reload_perl;	3935	do_reload_perl;
2806	undef $RELOAD_WATCHER;	3936	undef $RELOAD_WATCHER;
2807	},	3937	};
2808	);	3938	};
2809	}	3939	}
2810		3940
2811	register_command "reload" => sub {	3941	register_command "reload" => sub {
2812	my ($who, $arg) = @_;	3942	my ($who, $arg) = @_;
2813		3943
2814	if ($who->flag (FLAG_WIZ)) {	3944	if ($who->flag (FLAG_WIZ)) {
2815	$who->message ("reloading server.");	3945	$who->message ("reloading server.");
		3946	async {
		3947	$Coro::current->{desc} = "perl_reload";
2816	async { reload_perl };	3948	reload_perl;
		3949	};
2817	}	3950	}
2818	};	3951	};
2819		3952
2820	unshift @INC, $LIBDIR;	3953	unshift @INC, $LIBDIR;
2821		3954
…		…
2823		3956
2824	our @WAIT_FOR_TICK;	3957	our @WAIT_FOR_TICK;
2825	our @WAIT_FOR_TICK_BEGIN;	3958	our @WAIT_FOR_TICK_BEGIN;
2826		3959
2827	sub wait_for_tick {	3960	sub wait_for_tick {
2828	return unless $TICK_WATCHER->is_active;
2829	return if $Coro::current == $Coro::main;	3961	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2830		3962
2831	my $signal = new Coro::Signal;	3963	my $signal = new Coro::Signal;
2832	push @WAIT_FOR_TICK, $signal;	3964	push @WAIT_FOR_TICK, $signal;
2833	$signal->wait;	3965	$signal->wait;
2834	}	3966	}
2835		3967
2836	sub wait_for_tick_begin {	3968	sub wait_for_tick_begin {
2837	return unless $TICK_WATCHER->is_active;
2838	return if $Coro::current == $Coro::main;	3969	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2839		3970
2840	my $signal = new Coro::Signal;	3971	my $signal = new Coro::Signal;
2841	push @WAIT_FOR_TICK_BEGIN, $signal;	3972	push @WAIT_FOR_TICK_BEGIN, $signal;
2842	$signal->wait;	3973	$signal->wait;
2843	}	3974	}
2844		3975
2845	my $min = 1e6;#d#	3976	sub tick {
2846	my $avg = 10;
2847	$TICK_WATCHER = Event->timer (
2848	reentrant => 0,
2849	parked => 1,
2850	prio => 0,
2851	at => $NEXT_TICK || $TICK,
2852	data => WF_AUTOCANCEL,
2853	cb => sub {
2854	if ($Coro::current != $Coro::main) {	3977	if ($Coro::current != $Coro::main) {
2855	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3978	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2856	unless ++$bug_warning > 10;	3979	unless ++$bug_warning > 10;
2857	return;	3980	return;
2858	}	3981	}
2859		3982
2860	$NOW = $tick_start = Event::time;
2861
2862	cf::server_tick; # one server iteration	3983	cf::server_tick; # one server iteration
2863		3984
2864	0 && sync_job {#d#	3985	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2865	for(1..10) {
2866	my $t = Event::time;
2867	my $map = my $map = new_from_path cf::map "/tmp/x.map"
2868	or die;
2869		3986
2870	$map->width (50);	3987	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2871	$map->height (50);	3988	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2872	$map->alloc;	3989	Coro::async_pool {
2873	$map->_load_objects ("/tmp/x.map", 1);	3990	$Coro::current->{desc} = "runtime saver";
2874	my $t = Event::time - $t;	3991	write_runtime_sync
2875		3992	or warn "ERROR: unable to write runtime file: $!";
2876	#next unless $t < 0.0013;#d#
2877	if ($t < $min) {
2878	$min = $t;
2879	}
2880	$avg = $avg * 0.99 + $t * 0.01;
2881	}
2882	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
2883	exit 0;
2884	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2885	};	3993	};
		3994	}
2886		3995
2887	$RUNTIME += $TICK;
2888	$NEXT_TICK += $TICK;
2889
2890	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2891	$NEXT_RUNTIME_WRITE = $NOW + 10;
2892	Coro::async_pool {
2893	write_runtime
2894	or warn "ERROR: unable to write runtime file: $!";
2895	};
2896	}
2897
2898	# my $AFTER = Event::time;
2899	# warn $AFTER - $NOW;#d#
2900
2901	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3996	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2902	$sig->send;	3997	$sig->send;
2903	}	3998	}
2904	while (my $sig = shift @WAIT_FOR_TICK) {	3999	while (my $sig = shift @WAIT_FOR_TICK) {
2905	$sig->send;	4000	$sig->send;
2906	}	4001	}
2907		4002
2908	$NOW = Event::time;	4003	$LOAD = ($NOW - $TICK_START) / $TICK;
2909
2910	# if we are delayed by four ticks or more, skip them all
2911	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2912
2913	$TICK_WATCHER->at ($NEXT_TICK);
2914	$TICK_WATCHER->start;
2915
2916	$LOAD = ($NOW - $tick_start) / $TICK;
2917	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;	4004	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2918		4005
2919	_post_tick;	4006	if (0) {
2920		4007	if ($NEXT_TICK) {
2921		4008	my $jitter = $TICK_START - $NEXT_TICK;
		4009	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4010	warn "jitter $JITTER\n";#d#
		4011	}
2922	},	4012	}
2923	);	4013	}
2924		4014
2925	{	4015	{
2926	BDB::max_poll_time $TICK * 0.1;	4016	# configure BDB
2927	$BDB_POLL_WATCHER = Event->io (	4017
2928	reentrant => 0,
2929	fd => BDB::poll_fileno,
2930	poll => 'r',
2931	prio => 0,
2932	data => WF_AUTOCANCEL,
2933	cb => \&BDB::poll_cb,
2934	);
2935	BDB::min_parallel 8;	4018	BDB::min_parallel 16;
2936		4019	BDB::max_poll_reqs $TICK * 0.1;
2937	BDB::set_sync_prepare {	4020	$AnyEvent::BDB::WATCHER->priority (1);
2938	my $status;
2939	my $current = $Coro::current;
2940	(
2941	sub {
2942	$status = $!;
2943	$current->ready; undef $current;
2944	},
2945	sub {
2946	Coro::schedule while defined $current;
2947	$! = $status;
2948	},
2949	)
2950	};
2951		4021
2952	unless ($DB_ENV) {	4022	unless ($DB_ENV) {
2953	$DB_ENV = BDB::db_env_create;	4023	$DB_ENV = BDB::db_env_create;
		4024	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4025	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4026	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4027	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4028	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2954		4029
2955	cf::sync_job {	4030	cf::sync_job {
2956	eval {	4031	eval {
2957	BDB::db_env_open	4032	BDB::db_env_open
2958	$DB_ENV,	4033	$DB_ENV,
…		…
2960	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4035	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2961	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4036	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2962	0666;	4037	0666;
2963		4038
2964	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	4039	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2965
2966	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2967	$DB_ENV->set_lk_detect;
2968	};	4040	};
2969		4041
2970	cf::cleanup "db_env_open(db): $@" if $@;	4042	cf::cleanup "db_env_open(db): $@" if $@;
2971	};	4043	};
2972	}	4044	}
		4045
		4046	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4047	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4048	};
		4049	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4050	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4051	};
		4052	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4053	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4054	};
2973	}	4055	}
2974		4056
2975	{	4057	{
		4058	# configure IO::AIO
		4059
2976	IO::AIO::min_parallel 8;	4060	IO::AIO::min_parallel 8;
2977
2978	undef $Coro::AIO::WATCHER;
2979	IO::AIO::max_poll_time $TICK * 0.1;	4061	IO::AIO::max_poll_time $TICK * 0.1;
2980	$AIO_POLL_WATCHER = Event->io (	4062	undef $AnyEvent::AIO::WATCHER;
2981	reentrant => 0,
2982	data => WF_AUTOCANCEL,
2983	fd => IO::AIO::poll_fileno,
2984	poll => 'r',
2985	prio => 6,
2986	cb => \&IO::AIO::poll_cb,
2987	);
2988	}	4063	}
2989		4064
2990	my $_log_backtrace;	4065	my $_log_backtrace;
2991		4066
2992	sub _log_backtrace {	4067	sub _log_backtrace {
…		…
2995	$msg =~ s/\n//;	4070	$msg =~ s/\n//;
2996		4071
2997	# limit the # of concurrent backtraces	4072	# limit the # of concurrent backtraces
2998	if ($_log_backtrace < 2) {	4073	if ($_log_backtrace < 2) {
2999	++$_log_backtrace;	4074	++$_log_backtrace;
		4075	my $perl_bt = Carp::longmess $msg;
3000	async {	4076	async {
		4077	$Coro::current->{desc} = "abt $msg";
		4078
3001	my @bt = fork_call {	4079	my @bt = fork_call {
3002	@addr = map { sprintf "%x", $_ } @addr;	4080	@addr = map { sprintf "%x", $_ } @addr;
3003	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4081	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
3004	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4082	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
3005	or die "addr2line: $!";	4083	or die "addr2line: $!";
…		…
3013	}	4091	}
3014		4092
3015	@funcs	4093	@funcs
3016	};	4094	};
3017		4095
3018	LOG llevInfo, "[ABT] $msg\n";	4096	LOG llevInfo, "[ABT] $perl_bt\n";
		4097	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3019	LOG llevInfo, "[ABT] $_\n" for @bt;	4098	LOG llevInfo, "[ABT] $_\n" for @bt;
3020	--$_log_backtrace;	4099	--$_log_backtrace;
3021	};	4100	};
3022	} else {	4101	} else {
3023	LOG llevInfo, "[ABT] $msg\n";	4102	LOG llevInfo, "[ABT] $msg\n";
3024	LOG llevInfo, "[ABT] [suppressed]\n";	4103	LOG llevInfo, "[ABT] [suppressed]\n";
3025	}	4104	}
3026	}	4105	}
3027		4106
3028	# load additional modules	4107	# load additional modules
3029	use cf::pod;	4108	require "cf/$_.pm" for @EXTRA_MODULES;
		4109	cf::_connect_to_perl_2;
3030		4110
3031	END { cf::emergency_save }	4111	END { cf::emergency_save }
3032		4112
3033	1	4113	1
3034		4114

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines